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/phy/meson-gxbb-usb2.c b/drivers/phy/meson-gxbb-usb2.c
index 88c2ec6..d1beebe 100644
--- a/drivers/phy/meson-gxbb-usb2.c
+++ b/drivers/phy/meson-gxbb-usb2.c
@@ -15,6 +15,7 @@
 #include <power/regulator.h>
 #include <regmap.h>
 #include <reset.h>
+#include <linux/bitops.h>
 
 #define REG_CONFIG					0x00
 	#define REG_CONFIG_CLK_EN			BIT(0)