mdio: mdio_if_info::mmds should not be __bitwise

I misunderstood the meaning of __bitwise.  In practice it makes sparse
warn about every use of mmds which is certainly not what we want.
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/mdio.h

@@ -304,7 +304,7 @@ static inline __u16 mdio_phy_id_devad(int phy_id)
  */
 struct mdio_if_info {
 	int prtad;
-	u32 __bitwise mmds;
+	u32 mmds;
 	unsigned mode_support;
 
 	struct net_device *dev;