net-next/hinic: Fix MTU limitation

Fix the hw MTU limitation by setting max_mtu

Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/huawei/hinic/hinic_main.c

@@ -919,6 +919,7 @@ static int nic_dev_init(struct pci_dev *pdev)
 
 	netdev->netdev_ops = &hinic_netdev_ops;
 	netdev->ethtool_ops = &hinic_ethtool_ops;
+	netdev->max_mtu = ETH_MAX_MTU;
 
 	nic_dev = netdev_priv(netdev);
 	nic_dev->netdev = netdev;