intel: Platform common code refactor

Pull out common code from aarch64 and include

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I4d0f5e1bb01bcdacbedf8e6c359de594239b645f
diff --git a/plat/intel/soc/stratix10/bl31_plat_setup.c b/plat/intel/soc/stratix10/bl31_plat_setup.c
index 21a3708..d81d5df 100644
--- a/plat/intel/soc/stratix10/bl31_plat_setup.c
+++ b/plat/intel/soc/stratix10/bl31_plat_setup.c
@@ -21,9 +21,8 @@
 #include <lib/mmio.h>
 #include <plat/common/platform.h>
 #include <platform_def.h>
-#include <platform_private.h>
 
-#include "aarch64/stratix10_private.h"
+#include "stratix10_private.h"
 #include "s10_handoff.h"
 #include "s10_reset_manager.h"
 #include "s10_memory_controller.h"