chore(xilinx): reorder include files as per TF-A guidelines

This commit reorders the include files in accordance with the
guidelines provided by Trusted Firmware-A (TF-A).
The include files are rearranged to ensure a consistent and
organized structure in the codebase, facilitating better
readability and maintainability.

https: //trustedfirmware-a.readthedocs.io/en/latest/process/coding-style.html#headers-and-inclusion
https://git.trustedfirmware.org/ci/tf-a-ci-scripts.git/tree/script/static-checks/

For example, to run header check:
/tf-a-ci-scripts/script/static-checks/check-include-order.py --tree ${PWD} > Includefileorder.txt

Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: Ia5802722e69859596b94f31ec40755adbf7d865b
diff --git a/plat/xilinx/common/pm_service/pm_svc_main.c b/plat/xilinx/common/pm_service/pm_svc_main.c
index bae369e..fb32f2a 100644
--- a/plat/xilinx/common/pm_service/pm_svc_main.c
+++ b/plat/xilinx/common/pm_service/pm_svc_main.c
@@ -11,15 +11,18 @@
  */
 
 #include <errno.h>
-#include <plat_private.h>
 #include <stdbool.h>
+
+#include "../drivers/arm/gic/v3/gicv3_private.h"
+
 #include <common/runtime_svc.h>
+#include <drivers/arm/gicv3.h>
 #include <plat/common/platform.h>
+
+#include <plat_private.h>
 #include "pm_api_sys.h"
 #include "pm_client.h"
 #include "pm_ipi.h"
-#include <drivers/arm/gicv3.h>
-#include "../drivers/arm/gic/v3/gicv3_private.h"
 
 #define MODE				0x80000000U