fix(plat/xilinx/versal): resolve misra R10.6 in pm services

MISRA Violation: MISRA-C:2012 R.10.6
- The value of a composite expression shall not be assigned to an object
  with wider essential type.

Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I67ac6b6b4b643f57e76a435345540e241c9a88b9

plat/xilinx/versal/pm_service/pm_client.c

@@ -122,7 +122,7 @@ static void pm_client_set_wakeup_sources(uint32_t node_id)
 	uint8_t pm_wakeup_nodes_set[XPM_NODEIDX_DEV_MAX];
 	uintptr_t isenabler1 = PLAT_VERSAL_GICD_BASE + GICD_ISENABLER + 4;
 
-	zeromem(&pm_wakeup_nodes_set, sizeof(pm_wakeup_nodes_set));
+	zeromem(&pm_wakeup_nodes_set, (u_register_t)sizeof(pm_wakeup_nodes_set));
 
 	for (reg_num = 0; reg_num < NUM_GICD_ISENABLER; reg_num++) {
 		uint32_t base_irq = reg_num << ISENABLER_SHIFT;
@@ -134,8 +134,8 @@ static void pm_client_set_wakeup_sources(uint32_t node_id)
 
 		while (reg) {
 			enum pm_device_node_idx node_idx;
-			uint32_t idx, ret, irq, lowest_set = reg & (-reg);
-
+			uint32_t idx, irq, lowest_set = reg & (-reg);
+			enum pm_ret_status ret;
 			idx = __builtin_ctz(lowest_set);
 			irq = base_irq + idx;
 
@@ -153,7 +153,7 @@ static void pm_client_set_wakeup_sources(uint32_t node_id)
 				ret = pm_set_wakeup_source(node_id,
 							   device_id, 1,
 							   SECURE_FLAG);
-				pm_wakeup_nodes_set[node_idx] = !ret;
+				pm_wakeup_nodes_set[node_idx] = (uint8_t)(!ret);
 			}
 		}
 	}

plat/xilinx/versal/pm_service/pm_svc_main.c

@@ -350,7 +350,7 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
 
 		ret = pm_clock_get_rate(pm_arg[0], rate, security_flag);
 		SMC_RET2(handle, (uint64_t)ret | ((uint64_t)rate[0] << 32),
-			 rate[1]);
+			 (uint64_t)rate[1] | ((uint64_t)0U << 32));
 	}
 
 	case PM_PLL_SET_PARAMETER:
@@ -389,7 +389,7 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
 
 		ret = pm_get_chipid(result, security_flag);
 		SMC_RET2(handle, (uint64_t)ret | ((uint64_t)result[0] << 32),
-			 result[1]);
+			 (uint64_t)result[1] | ((uint64_t)0U << 32));
 	}
 
 	case PM_FEATURE_CHECK: