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/rtc/rv8803.c b/drivers/rtc/rv8803.c
index 2ab40f0..7f56b15 100644
--- a/drivers/rtc/rv8803.c
+++ b/drivers/rtc/rv8803.c
@@ -13,6 +13,7 @@
 #include <common.h>
 #include <command.h>
 #include <dm.h>
+#include <log.h>
 #include <rtc.h>
 #include <i2c.h>