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/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
index d396afc..8c95229 100644
--- a/drivers/mmc/arm_pl180_mmci.c
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -14,6 +14,7 @@
 #include "common.h"
 #include <clk.h>
 #include <errno.h>
+#include <log.h>
 #include <malloc.h>
 #include <mmc.h>
 #include <dm/device_compat.h>