fix: rename Matterhorn, Matterhorn ELP, and Klein CPUs

This patch renames the Matterhorn, Matterhorn ELP, and Klein CPUs to
Cortex A710, Cortex X2, and Cortex A510 respectively.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I056d3114210db71c2840a24562b51caf2546e195
diff --git a/include/lib/cpus/aarch64/cortex_a510.h b/include/lib/cpus/aarch64/cortex_a510.h
new file mode 100644
index 0000000..6a4cfdf
--- /dev/null
+++ b/include/lib/cpus/aarch64/cortex_a510.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_A510_H
+#define CORTEX_A510_H
+
+#define CORTEX_A510_MIDR					U(0x410FD460)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_A510_CPUECTLR_EL1				S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_A510_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define CORTEX_A510_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
+
+#endif /* CORTEX_A510_H */
diff --git a/include/lib/cpus/aarch64/cortex_a710.h b/include/lib/cpus/aarch64/cortex_a710.h
new file mode 100644
index 0000000..44c540c
--- /dev/null
+++ b/include/lib/cpus/aarch64/cortex_a710.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_A710_H
+#define CORTEX_A710_H
+
+#define CORTEX_A710_MIDR					U(0x410FD470)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_A710_CPUECTLR_EL1				S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_A710_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define CORTEX_A710_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
+
+#endif /* CORTEX_A710_H */
diff --git a/include/lib/cpus/aarch64/cortex_klein.h b/include/lib/cpus/aarch64/cortex_klein.h
deleted file mode 100644
index 729b3bf..0000000
--- a/include/lib/cpus/aarch64/cortex_klein.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2020, ARM Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef CORTEX_KLEIN_H
-#define CORTEX_KLEIN_H
-
-#define CORTEX_KLEIN_MIDR					U(0x410FD460)
-
-/*******************************************************************************
- * CPU Extended Control register specific definitions
- ******************************************************************************/
-#define CORTEX_KLEIN_CPUECTLR_EL1				S3_0_C15_C1_4
-
-/*******************************************************************************
- * CPU Power Control register specific definitions
- ******************************************************************************/
-#define CORTEX_KLEIN_CPUPWRCTLR_EL1				S3_0_C15_C2_7
-#define CORTEX_KLEIN_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
-
-#endif /* CORTEX_KLEIN_H */
diff --git a/include/lib/cpus/aarch64/cortex_matterhorn.h b/include/lib/cpus/aarch64/cortex_matterhorn.h
deleted file mode 100644
index 0185533..0000000
--- a/include/lib/cpus/aarch64/cortex_matterhorn.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2020, ARM Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef CORTEX_MATTERHORN_H
-#define CORTEX_MATTERHORN_H
-
-#define CORTEX_MATTERHORN_MIDR					U(0x410FD470)
-
-/*******************************************************************************
- * CPU Extended Control register specific definitions
- ******************************************************************************/
-#define CORTEX_MATTERHORN_CPUECTLR_EL1				S3_0_C15_C1_4
-
-/*******************************************************************************
- * CPU Power Control register specific definitions
- ******************************************************************************/
-#define CORTEX_MATTERHORN_CPUPWRCTLR_EL1			S3_0_C15_C2_7
-#define CORTEX_MATTERHORN_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
-
-#endif /* CORTEX_MATTERHORN_H */
diff --git a/include/lib/cpus/aarch64/cortex_matterhorn_elp_arm.h b/include/lib/cpus/aarch64/cortex_matterhorn_elp_arm.h
deleted file mode 100644
index 309578e..0000000
--- a/include/lib/cpus/aarch64/cortex_matterhorn_elp_arm.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2021, ARM Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef CORTEX_MATTERHORN_ELP_ARM_H
-#define CORTEX_MATTERHORN_ELP_ARM_H
-
-#define CORTEX_MATTERHORN_ELP_ARM_MIDR					U(0x410FD480)
-
-/*******************************************************************************
- * CPU Extended Control register specific definitions
- ******************************************************************************/
-#define CORTEX_MATTERHORN_ELP_ARM_CPUECTLR_EL1				S3_0_C15_C1_4
-
-/*******************************************************************************
- * CPU Power Control register specific definitions
- ******************************************************************************/
-#define CORTEX_MATTERHORN_ELP_ARM_CPUPWRCTLR_EL1			S3_0_C15_C2_7
-#define CORTEX_MATTERHORN_ELP_ARM_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
-
-#endif /* CORTEX_MATTERHORN_ELP_ARM_H */
diff --git a/include/lib/cpus/aarch64/cortex_x2.h b/include/lib/cpus/aarch64/cortex_x2.h
new file mode 100644
index 0000000..9ce1223
--- /dev/null
+++ b/include/lib/cpus/aarch64/cortex_x2.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_X2_H
+#define CORTEX_X2_H
+
+#define CORTEX_X2_MIDR						U(0x410FD480)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_X2_CPUECTLR_EL1					S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_X2_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define CORTEX_X2_CPUPWRCTLR_EL1_CORE_PWRDN_BIT			U(1)
+
+#endif /* CORTEX_X2_H */