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/omap-cache.c b/arch/arm/mach-omap2/omap-cache.c
index 36db588..132b205 100644
--- a/arch/arm/mach-omap2/omap-cache.c
+++ b/arch/arm/mach-omap2/omap-cache.c
@@ -11,11 +11,12 @@
  *	Steve Sakoman	<steve@sakoman.com>
  */
 
-#include <common.h>
 #include <cpu_func.h>
 #include <log.h>
+#include <linux/string.h>
 #include <asm/cache.h>
 #include <asm/global_data.h>
+#include <asm/u-boot.h>
 
 DECLARE_GLOBAL_DATA_PTR;