ARM: OMAP: Make plat/omap_hwmod.h local to mach-omap2

Let's make omap_hwmod local to mach-omap2 for
ARM common zImage support.

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 48c0def..86a5e13 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -23,9 +23,10 @@
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
 
-#include "iomap.h"
 #include <plat-omap/dma-omap.h>
-#include <plat/omap_hwmod.h>
+
+#include "iomap.h"
+#include "omap_hwmod.h"
 #include "omap_device.h"
 #include "omap4-keypad.h"