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/video/dw_hdmi.c b/drivers/video/dw_hdmi.c
index bf74d6a..daf0024 100644
--- a/drivers/video/dw_hdmi.c
+++ b/drivers/video/dw_hdmi.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <fdtdec.h>
+#include <log.h>
 #include <asm/io.h>
 #include <i2c.h>
 #include <media_bus_format.h>