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/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
index 7b50a34..e5e3518 100644
--- a/drivers/gpio/dwapb_gpio.c
+++ b/drivers/gpio/dwapb_gpio.c
@@ -19,6 +19,7 @@
 #include <dm/root.h>
 #include <errno.h>
 #include <reset.h>
+#include <linux/bitops.h>
 
 #define GPIO_SWPORT_DR(p)	(0x00 + (p) * 0xc)
 #define GPIO_SWPORT_DDR(p)	(0x04 + (p) * 0xc)