fix(xilinx): rename variable to avoid conflict

This corrects the MISRA violation C2012-5.3:
An identifier declared in an inner scope shall not hide an
identifier declared in an outer scope.
Renamed variable to prevent the conflict with static inline
function with same identifier name declared in the outer scope.

Change-Id: Ic07a4d25ed43fdb7fcf9fba462787d6951079b5c
Signed-off-by: Nithin G <nithing@amd.com>
Signed-off-by: Maheedhar Bollapalli <maheedharsai.bollapalli@amd.com>
diff --git a/plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c b/plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c
index 6265928..0ea51f0 100644
--- a/plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c
+++ b/plat/xilinx/common/ipi_mailbox_service/ipi_mailbox_svc.c
@@ -106,11 +106,11 @@
 		SMC_RET1(handle, 0);
 	case IPI_MAILBOX_STATUS_ENQUIRY:
 	{
-		int32_t disable_irq;
+		int32_t disable_interrupt;
 
-		disable_irq = (x3 & IPI_SMC_ENQUIRY_DIRQ_MASK) ? 1 : 0;
+		disable_interrupt = (x3 & IPI_SMC_ENQUIRY_DIRQ_MASK) ? 1 : 0;
 		ret = ipi_mb_enquire_status(ipi_local_id, ipi_remote_id);
-		if ((ret & IPI_MB_STATUS_RECV_PENDING) && disable_irq)
+		if ((ret & IPI_MB_STATUS_RECV_PENDING) && disable_interrupt)
 			ipi_mb_disable_irq(ipi_local_id, ipi_remote_id);
 		SMC_RET1(handle, ret);
 	}
@@ -124,11 +124,11 @@
 	}
 	case IPI_MAILBOX_ACK:
 	{
-		int32_t enable_irq;
+		int32_t enable_interrupt;
 
-		enable_irq = (x3 & IPI_SMC_ACK_EIRQ_MASK) ? 1 : 0;
+		enable_interrupt = (x3 & IPI_SMC_ACK_EIRQ_MASK) ? 1 : 0;
 		ipi_mb_ack(ipi_local_id, ipi_remote_id);
-		if (enable_irq)
+		if (enable_interrupt)
 			ipi_mb_enable_irq(ipi_local_id, ipi_remote_id);
 		SMC_RET1(handle, 0);
 	}