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/msdi.c b/arch/arm/mach-omap2/msdi.c
index 46bf98a..627e97e 100644
--- a/arch/arm/mach-omap2/msdi.c
+++ b/arch/arm/mach-omap2/msdi.c
@@ -25,9 +25,9 @@
 #include <linux/err.h>
 #include <linux/platform_data/gpio-omap.h>
 
-#include <plat/omap_hwmod.h>
 #include "common.h"
 #include "control.h"
+#include "omap_hwmod.h"
 #include "omap_device.h"
 #include "mux.h"
 #include "mmc.h"