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/clk/rockchip/clk_rk3308.c b/drivers/clk/rockchip/clk_rk3308.c
index c0f1285..5889cf8 100644
--- a/drivers/clk/rockchip/clk_rk3308.c
+++ b/drivers/clk/rockchip/clk_rk3308.c
@@ -8,6 +8,7 @@
 #include <dm.h>
 #include <div64.h>
 #include <errno.h>
+#include <log.h>
 #include <malloc.h>
 #include <syscon.h>
 #include <asm/io.h>