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

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

Reviewed-By: Holger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 991022a..9358c25 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -7,7 +7,7 @@
  * Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com
  */
 
-#include <common.h>
+#include <config.h>
 #include <env.h>
 #include <ioports.h>
 #include <command.h>