fix(plat/xilinx/versal): resolve misra R14.4

MISRA Violation: MISRA-C:2012 R.14.4
- The controlling expression of an if statement and the controlling
  expression of an iteration-statement shall have essentially Boolean type.

Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I8cf821a42015858200cc0c514600012c8f61061f
diff --git a/plat/xilinx/versal/plat_versal.c b/plat/xilinx/versal/plat_versal.c
index 15b89bf..54c35b6 100644
--- a/plat/xilinx/versal/plat_versal.c
+++ b/plat/xilinx/versal/plat_versal.c
@@ -9,7 +9,7 @@
 
 int plat_core_pos_by_mpidr(u_register_t mpidr)
 {
-	if (mpidr & MPIDR_CLUSTER_MASK) {
+	if ((mpidr & MPIDR_CLUSTER_MASK) != 0U) {
 		return -1;
 	}