net: systemport: start with carrier off

The SYSTEMPORT driver uses libphy to determine the carrier state, so
make sure we start with a carrier off until libphy has completed the
link training process.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bcmsysport.c

@@ -1595,6 +1595,9 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 	 */
 	dev->flags &= ~IFF_MULTICAST;
 
+	/* libphy will adjust the link state accordingly */
+	netif_carrier_off(dev);
+
 	ret = register_netdev(dev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register net_device\n");