fix(versal): initialize the variable with value 0 in pm code

Remove zeromem function as the array is already initialized
with value 0.

MISRA Violation: MISRA C-2012 Rule 9.1
- Initialize the array/variable with a value 0 to resolve
the misra warnings in pm_service component.

Signed-off-by: Naman Patel <naman.patel@amd.com>
Change-Id: I1a3d44a7ae4088a3034eb0119d82b99cd4617ccd
diff --git a/plat/xilinx/versal/pm_service/pm_client.c b/plat/xilinx/versal/pm_service/pm_client.c
index ce5e533..54f4eb2 100644
--- a/plat/xilinx/versal/pm_service/pm_client.c
+++ b/plat/xilinx/versal/pm_service/pm_client.c
@@ -120,11 +120,9 @@
 {
 	uint32_t reg_num;
 	uint32_t device_id;
-	uint8_t pm_wakeup_nodes_set[XPM_NODEIDX_DEV_MAX];
+	uint8_t pm_wakeup_nodes_set[XPM_NODEIDX_DEV_MAX] = { 0U };
 	uintptr_t isenabler1 = PLAT_VERSAL_GICD_BASE + GICD_ISENABLER + 4;
 
-	zeromem(&pm_wakeup_nodes_set, (u_register_t)sizeof(pm_wakeup_nodes_set));
-
 	for (reg_num = 0U; reg_num < NUM_GICD_ISENABLER; reg_num++) {
 		uint32_t base_irq = reg_num << ISENABLER_SHIFT;
 		uint32_t reg = mmio_read_32(isenabler1 + (reg_num << 2));
diff --git a/plat/xilinx/versal/pm_service/pm_svc_main.c b/plat/xilinx/versal/pm_service/pm_svc_main.c
index 9eb426a..c90f9e1 100644
--- a/plat/xilinx/versal/pm_service/pm_svc_main.c
+++ b/plat/xilinx/versal/pm_service/pm_svc_main.c
@@ -160,7 +160,7 @@
 
 	case PM_IOCTL:
 	{
-		uint32_t value;
+		uint32_t value = 0U;
 
 		ret = pm_api_ioctl(pm_arg[0], pm_arg[1], pm_arg[2],
 				   pm_arg[3], pm_arg[4],