ARM: OMAP: Make omap_device local to mach-omap2

Let's make omap_device local to mach-omap2 for
ARM common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c
index 2a79176..4b3230f 100644
--- a/arch/arm/mach-omap2/pmu.c
+++ b/arch/arm/mach-omap2/pmu.c
@@ -16,7 +16,7 @@
 #include <asm/pmu.h>
 
 #include <plat/omap_hwmod.h>
-#include <plat/omap_device.h>
+#include "omap_device.h"
 
 static char *omap2_pmu_oh_names[] = {"mpu"};
 static char *omap3_pmu_oh_names[] = {"mpu", "debugss"};