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/dma.c b/arch/arm/mach-omap2/dma.c
index 7ddc6c9..bc9a4e9 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -28,9 +28,9 @@
 #include <linux/init.h>
 #include <linux/device.h>
 
-#include <plat/omap_hwmod.h>
 #include <plat-omap/dma-omap.h>
 
+#include "omap_hwmod.h"
 #include "omap_device.h"
 
 #define OMAP2_DMA_STRIDE	0x60