net: axienet: populate supported_interfaces member

Populate the phy_interface_t bitmap for the Xilinx axienet driver with
interfaces modes supported by the MAC.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

@@ -2105,6 +2105,14 @@ static int axienet_probe(struct platform_device *pdev)
 	lp->phylink_config.dev = &ndev->dev;
 	lp->phylink_config.type = PHYLINK_NETDEV;
 
+	__set_bit(lp->phy_mode, lp->phylink_config.supported_interfaces);
+	if (lp->switch_x_sgmii) {
+		__set_bit(PHY_INTERFACE_MODE_1000BASEX,
+			  lp->phylink_config.supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_SGMII,
+			  lp->phylink_config.supported_interfaces);
+	}
+
 	lp->phylink = phylink_create(&lp->phylink_config, pdev->dev.fwnode,
 				     lp->phy_mode,
 				     &axienet_phylink_ops);