ARM: OMAP: fix build for omap4-restart.c

From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [linux-next PATCH] ARM: OMAP: fix build for omap4-restart.c

Building omap2plus_defconfig for next-20130626 results in the following build error:

arch/arm/mach-omap2/omap4-restart.c:21:28: warning: ?enum reboot_mode? declared inside parameter list [enabled by default] arch/arm/mach-omap2/omap4-restart.c:21:28: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/arm/mach-omap2/omap4-restart.c:21:40: error: parameter 1 (?mode?) has incomplete type
arch/arm/mach-omap2/omap4-restart.c:21:6: warning: function declaration isn?t a prototype [-Wstrict-prototypes]

It is caused by commit 7eb135b ("reboot: arm: change reboot_mode to use enum reboot_mode").

Fix it by adding missing include.

---
 arch/arm/mach-omap2/omap4-restart.c |    1 +
 1 file changed, 1 insertion(+)

Index: b/arch/arm/mach-omap2/omap4-restart.c
===================================================================
@@ -8,6 +8,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/reboot.h>
 #include "prminst44xx.h"
 
 /**