common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/rockchip/pinctrl-rv1108.c b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
index 653e40b..2233432 100644
--- a/drivers/pinctrl/rockchip/pinctrl-rv1108.c
+++ b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
@@ -9,6 +9,7 @@
 #include <dm/pinctrl.h>
 #include <regmap.h>
 #include <syscon.h>
+#include <linux/bitops.h>
 
 #include "pinctrl-rockchip.h"