net: ethernet: marvell: pxa168_eth: Implement ethtool::nway_reset

Implement ethtool::nway_reset using phy_ethtool_nway_reset. We are
already using dev->phydev all over the place so this comes for free.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/pxa168_eth.c

@@ -1393,6 +1393,7 @@ static void pxa168_get_drvinfo(struct net_device *dev,
 
 static const struct ethtool_ops pxa168_ethtool_ops = {
 	.get_drvinfo	= pxa168_get_drvinfo,
+	.nway_reset	= phy_ethtool_nway_reset,
 	.get_link	= ethtool_op_get_link,
 	.get_ts_info	= ethtool_op_get_ts_info,
 	.get_link_ksettings = pxa168_get_link_ksettings,