feat(xilinx): setup local/remote id in header

Use new macros IPI_LOCAL_ID/IPI_REMOTE_ID to specify source and
destination channels.

Change-Id: I558eebb4d4a83ae0ca9316824f9dba7426adbe3f
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 1dba4ea..da77ccc 100644
--- a/plat/xilinx/versal/include/plat_ipi.h
+++ b/plat/xilinx/versal/include/plat_ipi.h
@@ -29,6 +29,9 @@
  ********************************************************************/
 #define IPI_BUFFER_BASEADDR	0xFF3F0000U
 
+#define IPI_LOCAL_ID		IPI_ID_APU
+#define IPI_REMOTE_ID		IPI_ID_PMC
+
 #define IPI_BUFFER_LOCAL_BASE	(IPI_BUFFER_BASEADDR + 0x400U)
 #define IPI_BUFFER_REMOTE_BASE	(IPI_BUFFER_BASEADDR + 0x200U)