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/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c
index 2de4e98..74f185c 100644
--- a/arch/arm/mach-rockchip/tpl.c
+++ b/arch/arm/mach-rockchip/tpl.c
@@ -8,6 +8,7 @@
 #include <dm.h>
 #include <hang.h>
 #include <init.h>
+#include <log.h>
 #include <ram.h>
 #include <spl.h>
 #include <version.h>