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/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c
index 93b88d1..6ec454c 100644
--- a/drivers/mmc/gen_atmel_mci.c
+++ b/drivers/mmc/gen_atmel_mci.c
@@ -11,6 +11,7 @@
 #include <common.h>
 #include <clk.h>
 #include <dm.h>
+#include <log.h>
 #include <mmc.h>
 #include <part.h>
 #include <malloc.h>