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/clk-uclass.c b/drivers/clk/clk-uclass.c
index 7187847..276e4fb 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -12,6 +12,7 @@
 #include <dm.h>
 #include <dt-structs.h>
 #include <errno.h>
+#include <log.h>
 #include <malloc.h>
 #include <dm/devres.h>
 #include <dm/read.h>