feat(cpu): add support for Hunter CPU

This patch adds the basic CPU library code to support the Hunter CPU
in TF-A. This CPU is based on the Makalu core so that library code
was adapted as the basis for this patch.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I956b2dc0f43da7cec3e015252392e2694363e1b3
diff --git a/include/lib/cpus/aarch64/cortex_hunter.h b/include/lib/cpus/aarch64/cortex_hunter.h
new file mode 100644
index 0000000..8b59fd9
--- /dev/null
+++ b/include/lib/cpus/aarch64/cortex_hunter.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_HUNTER_H
+#define CORTEX_HUNTER_H
+
+#define CORTEX_HUNTER_MIDR					U(0x410FD810)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_HUNTER_CPUECTLR_EL1				S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_HUNTER_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define CORTEX_HUNTER_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
+
+#endif /* CORTEX_HUNTER_H */