ARM: OMAP2+: Make omap4-keypad.h local

This can be local to mach-omap2.

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 1bb2e92..d092d2a8 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -27,7 +27,7 @@
 #include <plat/dma.h>
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
-#include <plat/omap4-keypad.h>
+#include "omap4-keypad.h"
 
 #include "soc.h"
 #include "common.h"