feat(xilinx): clean macro names

This is preparation for cleaning up IPI local and remote side
communication. As of today macros are aligned to communication
channel but there is missing calculation based on channel
selection.

Change-Id: Iac7daf832ff372ea2fece72a15afdfe988b4b7db
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/plat/xilinx/versal/include/plat_ipi.h b/plat/xilinx/versal/include/plat_ipi.h
index 30a2420..1dba4ea 100644
--- a/plat/xilinx/versal/include/plat_ipi.h
+++ b/plat/xilinx/versal/include/plat_ipi.h
@@ -1,5 +1,6 @@
 /*
- * Copyright (c) 2019, Xilinx, Inc. All rights reserved.
+ * Copyright (c) 2019-2022, Xilinx, Inc. All rights reserved.
+ * Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -28,16 +29,11 @@
  ********************************************************************/
 #define IPI_BUFFER_BASEADDR	0xFF3F0000U
 
-#define IPI_BUFFER_APU_BASE	(IPI_BUFFER_BASEADDR + 0x400U)
-#define IPI_BUFFER_PMC_BASE	(IPI_BUFFER_BASEADDR + 0x200U)
-
-#define IPI_BUFFER_TARGET_APU_OFFSET	0x80U
-#define IPI_BUFFER_TARGET_PMC_OFFSET	0x40U
-
-#define IPI_BUFFER_REMOTE_BASE	IPI_BUFFER_PMC_BASE
+#define IPI_BUFFER_LOCAL_BASE	(IPI_BUFFER_BASEADDR + 0x400U)
+#define IPI_BUFFER_REMOTE_BASE	(IPI_BUFFER_BASEADDR + 0x200U)
 
-#define IPI_BUFFER_TARGET_LOCAL_OFFSET	IPI_BUFFER_TARGET_APU_OFFSET
-#define IPI_BUFFER_TARGET_REMOTE_OFFSET	IPI_BUFFER_TARGET_PMC_OFFSET
+#define IPI_BUFFER_TARGET_LOCAL_OFFSET	0x80U
+#define IPI_BUFFER_TARGET_REMOTE_OFFSET	0x40U
 
 #define IPI_BUFFER_MAX_WORDS	8