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/reset/reset-rockchip.c b/drivers/reset/reset-rockchip.c
index 7c30919..8092555 100644
--- a/drivers/reset/reset-rockchip.c
+++ b/drivers/reset/reset-rockchip.c
@@ -8,6 +8,7 @@
 #include <log.h>
 #include <malloc.h>
 #include <reset-uclass.h>
+#include <linux/bitops.h>
 #include <linux/io.h>
 #include <asm/arch-rockchip/hardware.h>
 #include <dm/lists.h>