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/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index 95a0053..3efed3d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -16,9 +16,10 @@
 #include <linux/i2c-omap.h>
 #include <linux/platform_data/spi-omap2-mcspi.h>
 
-#include <plat/omap_hwmod.h>
 #include <plat-omap/dma-omap.h>
 #include <plat/dmtimer.h>
+
+#include "omap_hwmod.h"
 #include "l3_2xxx.h"
 #include "l4_2xxx.h"