common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/freescale/common/vid.c b/board/freescale/common/vid.c
index dfc6a91..0bad67e 100644
--- a/board/freescale/common/vid.c
+++ b/board/freescale/common/vid.c
@@ -8,6 +8,7 @@
 #include <env.h>
 #include <i2c.h>
 #include <irq_func.h>
+#include <log.h>
 #include <asm/io.h>
 #ifdef CONFIG_FSL_LSCH2
 #include <asm/arch/immap_lsch2.h>