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/display.c b/arch/arm/mach-omap2/display.c
index 55661d0..815af41 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -25,7 +25,7 @@
 #include <linux/delay.h>
 
 #include <video/omapdss.h>
-#include <plat/omap_hwmod.h>
+#include "omap_hwmod.h"
 #include "omap_device.h"
 #include <plat/omap-pm.h>
 #include "common.h"