amlogic: Fix includes order

As part of the code refactoring fix the order of the include files
across all the source files.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ice72f687cc26ee881a9051168149467688100cfb
diff --git a/plat/amlogic/gxbb/gxbb_pm.c b/plat/amlogic/gxbb/gxbb_pm.c
index ed57fee..48bff7b 100644
--- a/plat/amlogic/gxbb/gxbb_pm.c
+++ b/plat/amlogic/gxbb/gxbb_pm.c
@@ -4,18 +4,16 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <assert.h>
-#include <errno.h>
-
-#include <platform_def.h>
-
 #include <arch_helpers.h>
+#include <assert.h>
 #include <common/debug.h>
 #include <drivers/arm/gicv2.h>
 #include <drivers/console.h>
+#include <errno.h>
 #include <lib/mmio.h>
 #include <lib/psci/psci.h>
 #include <plat/common/platform.h>
+#include <platform_def.h>
 
 #include "aml_private.h"