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: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/stmmac/stmmac_ethtool.c b/drivers/net/stmmac/stmmac_ethtool.c
index 9c05cf0..ae5213a 100644
--- a/drivers/net/stmmac/stmmac_ethtool.c
+++ b/drivers/net/stmmac/stmmac_ethtool.c
@@ -234,6 +234,7 @@
 		new_pause |= FLOW_TX;
 
 	priv->flow_ctrl = new_pause;
+	phy->autoneg = pause->autoneg;
 
 	if (phy->autoneg) {
 		if (netif_running(netdev))