ucc_geth: Add SUPPORTED_MII and SUPPORTED_Autoneg

The driver supports Autoneg and at least MII. Tell the PHY
that to avoid any confusion in the PHY code.
Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ucc_geth.c

@@ -1761,10 +1761,12 @@ static int init_phy(struct net_device *dev)
 	if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
 		uec_configure_serdes(dev);
 
-	phydev->supported &= (ADVERTISED_10baseT_Half |
-				 ADVERTISED_10baseT_Full |
-				 ADVERTISED_100baseT_Half |
-				 ADVERTISED_100baseT_Full);
+	phydev->supported &= (SUPPORTED_MII |
+			      SUPPORTED_Autoneg |
+			      ADVERTISED_10baseT_Half |
+			      ADVERTISED_10baseT_Full |
+			      ADVERTISED_100baseT_Half |
+			      ADVERTISED_100baseT_Full);
 
 	if (priv->max_speed == SPEED_1000)
 		phydev->supported |= ADVERTISED_1000baseT_Full;