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

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

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-highbank/timer.c b/arch/arm/mach-highbank/timer.c
index 2423a0e..32ec6f0 100644
--- a/arch/arm/mach-highbank/timer.c
+++ b/arch/arm/mach-highbank/timer.c
@@ -5,7 +5,6 @@
  * Based on arm926ejs/mx27/timer.c
  */
 
-#include <common.h>
 #include <init.h>
 #include <asm/io.h>
 #include <asm/arch-armv7/systimer.h>