qede: Don't override priv_flags

Driver is now setting the ndev's priv_flags instead of adding to it,
causing pktgen failure to utilize various features due to the loss
of the IFF_TX_SKB_SHARING indication.

Fixes: 7b7e70f9 ("qed*: Allow unicast filtering")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qede/qede_main.c

@@ -2366,7 +2366,7 @@ static void qede_init_ndev(struct qede_dev *edev)
 
 	qede_set_ethtool_ops(ndev);
 
-	ndev->priv_flags = IFF_UNICAST_FLT;
+	ndev->priv_flags |= IFF_UNICAST_FLT;
 
 	/* user-changeble features */
 	hw_features = NETIF_F_GRO | NETIF_F_SG |