stmmac: fix autoneg in set_pauseparam

This patch fixes a bug in the set_pauseparam
function that didn't well manage the ANE
field and returned broken values when use
ethtool -A|-a.
Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/stmmac/stmmac_ethtool.c

@@ -234,6 +234,7 @@ stmmac_set_pauseparam(struct net_device *netdev,
 		new_pause |= FLOW_TX;
 
 	priv->flow_ctrl = new_pause;
+	phy->autoneg = pause->autoneg;
 
 	if (phy->autoneg) {
 		if (netif_running(netdev))