arm: orion5x: Remove <common.h> and add needed includes

Remove <common.h> from all mach-orion5x files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-orion5x/timer.c b/arch/arm/mach-orion5x/timer.c
index b373e59..85736f0 100644
--- a/arch/arm/mach-orion5x/timer.c
+++ b/arch/arm/mach-orion5x/timer.c
@@ -7,7 +7,7 @@
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  */
 
-#include <common.h>
+#include <config.h>
 #include <init.h>
 #include <time.h>
 #include <asm/global_data.h>