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/mux.c b/arch/arm/mach-omap2/mux.c
index 701e17c..635d5ef 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -36,7 +36,7 @@
 #include <linux/interrupt.h>
 
 
-#include <plat/omap_hwmod.h>
+#include "omap_hwmod.h"
 
 #include "control.h"
 #include "mux.h"