ARM: OMAP: Make plat/common.h local to mach-omap1 and mach-omap2

We cannot keep this in plat/common.h for common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 6b4d332..6fabbd8 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -24,7 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
-#include <plat/common.h>
+#include "../plat-omap/common.h"
 #include <plat/prcm.h>
 
 #include "prm2xxx_3xxx.h"