plat: xilinx: Fix non-MISRA compliant code

This patch fixes the non compliant code like missing braces for
conditional single statement bodies.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I95b410ae5950f85dc913c4448fcd0a97e0fd490c
diff --git a/plat/xilinx/zynqmp/plat_zynqmp.c b/plat/xilinx/zynqmp/plat_zynqmp.c
index 906ce1b..58a52a3 100644
--- a/plat/xilinx/zynqmp/plat_zynqmp.c
+++ b/plat/xilinx/zynqmp/plat_zynqmp.c
@@ -9,11 +9,13 @@
 
 int plat_core_pos_by_mpidr(u_register_t mpidr)
 {
-	if (mpidr & MPIDR_CLUSTER_MASK)
+	if (mpidr & MPIDR_CLUSTER_MASK) {
 		return -1;
+	}
 
-	if ((mpidr & MPIDR_CPU_MASK) >= PLATFORM_CORE_COUNT)
+	if ((mpidr & MPIDR_CPU_MASK) >= PLATFORM_CORE_COUNT) {
 		return -1;
+	}
 
 	return zynqmp_calc_core_pos(mpidr);
 }