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/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 0580b50..36daef0 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -23,6 +23,7 @@
 #include <log.h>
 #include <watchdog.h>
 #include <dm/devres.h>
+#include <linux/bitops.h>
 #include <linux/compat.h>
 #include <linux/mtd/mtd.h>
 #include "linux/mtd/flashchip.h"