arm: omap2: Remove <common.h> and add needed includes

Remove <common.h> from all mach-omap2 files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 71fdf5b..ed0620e 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -15,7 +15,7 @@
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
  */
 
-#include <common.h>
+#include <config.h>
 #include <init.h>
 #include <time.h>
 #include <asm/global_data.h>