fix(versal): resolve the misra 4.6 warnings

MISRA Violation: MISRA-C:2012 R.4.6
- Using basic numerical type int rather than a typedef
that includes size and signedness information.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: Ieff90b5311a3bde8a2cb302ca81c23eeee6d235a
diff --git a/plat/xilinx/versal/plat_psci.c b/plat/xilinx/versal/plat_psci.c
index acecbb1..6787f31 100644
--- a/plat/xilinx/versal/plat_psci.c
+++ b/plat/xilinx/versal/plat_psci.c
@@ -238,7 +238,7 @@
 /*******************************************************************************
  * Export the platform specific power ops.
  ******************************************************************************/
-int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+int32_t plat_setup_psci_ops(uintptr_t sec_entrypoint,
 			const struct plat_psci_ops **psci_ops)
 {
 	versal_sec_entry = sec_entrypoint;