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/sound/broadwell_i2s.c b/drivers/sound/broadwell_i2s.c
index 3d57740..adb0b2b 100644
--- a/drivers/sound/broadwell_i2s.c
+++ b/drivers/sound/broadwell_i2s.c
@@ -12,6 +12,7 @@
 #include <common.h>
 #include <dm.h>
 #include <i2s.h>
+#include <log.h>
 #include <time.h>
 #include <asm/io.h>
 #include "broadwell_i2s.h"