Fix MISRA rule 8.4 Part 1

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I7c2ad3f5c015411c202605851240d5347e4cc8c7
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/plat/arm/common/arm_io_storage.c b/plat/arm/common/arm_io_storage.c
index 5cabc54..652f5e9 100644
--- a/plat/arm/common/arm_io_storage.c
+++ b/plat/arm/common/arm_io_storage.c
@@ -10,6 +10,8 @@
 #include <io_fip.h>
 #include <io_memmap.h>
 #include <io_storage.h>
+#include <plat_arm.h>
+#include <platform.h>
 #include <platform_def.h>
 #include <string.h>
 #include <utils.h>