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/spi/mscc_bb_spi.c b/drivers/spi/mscc_bb_spi.c
index 37327ec..0454410 100644
--- a/drivers/spi/mscc_bb_spi.c
+++ b/drivers/spi/mscc_bb_spi.c
@@ -14,6 +14,7 @@
 #include <dm.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
 #include <linux/delay.h>
 
 struct mscc_bb_priv {