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/ufs/ufs.c b/drivers/ufs/ufs.c
index 136dab5..87b4e5f 100644
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -19,6 +19,7 @@
 #include <malloc.h>
 #include <hexdump.h>
 #include <scsi.h>
+#include <linux/bitops.h>
 #include <linux/delay.h>
 
 #include <linux/dma-mapping.h>