xilinx: zynqmp: Add support for Error Management

Adding the EM specific smc handler for the EM-related requests.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I98122d49604a01a2f6bd1e509a5896ee68069dd0
diff --git a/plat/xilinx/zynqmp/pm_service/pm_svc_main.h b/plat/xilinx/zynqmp/pm_service/pm_svc_main.h
index 0968f64..abadd40 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_svc_main.h
+++ b/plat/xilinx/zynqmp/pm_service/pm_svc_main.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -14,4 +14,7 @@
 			uint64_t x4, void *cookie, void *handle,
 			uint64_t flags);
 
+uint64_t em_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
+			uint64_t x4, void *cookie, void *handle,
+			uint64_t flags);
 #endif /* PM_SVC_MAIN_H */