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

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

Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/freescale/t208xqds/spl.c b/board/freescale/t208xqds/spl.c
index 8866be5..44ad4e6 100644
--- a/board/freescale/t208xqds/spl.c
+++ b/board/freescale/t208xqds/spl.c
@@ -2,7 +2,7 @@
 /* Copyright 2013 Freescale Semiconductor, Inc.
  */
 
-#include <common.h>
+#include <config.h>
 #include <clock_legacy.h>
 #include <console.h>
 #include <env_internal.h>