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/t208xqds/eth_t208xqds.c b/board/freescale/t208xqds/eth_t208xqds.c
index 057fe41..938e606 100644
--- a/board/freescale/t208xqds/eth_t208xqds.c
+++ b/board/freescale/t208xqds/eth_t208xqds.c
@@ -9,6 +9,7 @@
 #include <common.h>
 #include <command.h>
 #include <fdt_support.h>
+#include <log.h>
 #include <net.h>
 #include <netdev.h>
 #include <asm/mmu.h>