board: wandboard: Remove <common.h> and add needed includes

Remove <common.h> from this board vendor directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

board/wandboard/spl.c

@@ -5,7 +5,7 @@
  *         Richard Hu <hakahu@gmail.com>
  */
 
-#include <common.h>
+#include <config.h>
 #include <init.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.h>

board/wandboard/wandboard.c

@@ -6,7 +6,6 @@
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
  */
 
-#include <common.h>
 #include <image.h>
 #include <init.h>
 #include <log.h>