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/watchdog/xilinx_tb_wdt.c b/drivers/watchdog/xilinx_tb_wdt.c
index 5580764..ea4311c 100644
--- a/drivers/watchdog/xilinx_tb_wdt.c
+++ b/drivers/watchdog/xilinx_tb_wdt.c
@@ -10,6 +10,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <log.h>
 #include <wdt.h>
 #include <linux/err.h>
 #include <linux/io.h>