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/drivers/misc/qfw.c b/drivers/misc/qfw.c
index 81e2661..f6eb658 100644
--- a/drivers/misc/qfw.c
+++ b/drivers/misc/qfw.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <command.h>
 #include <errno.h>
+#include <log.h>
 #include <malloc.h>
 #include <qfw.h>
 #include <asm/io.h>