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/ls1088a/ls1088a.c b/board/freescale/ls1088a/ls1088a.c
index 1b10aa7..974a43a 100644
--- a/board/freescale/ls1088a/ls1088a.c
+++ b/board/freescale/ls1088a/ls1088a.c
@@ -6,6 +6,7 @@
 #include <env.h>
 #include <i2c.h>
 #include <init.h>
+#include <log.h>
 #include <malloc.h>
 #include <errno.h>
 #include <netdev.h>