drivers: net: bcm-sf2: pass -1 to phy_connect()

Passing 0 to PHY connect used to trigger a MDIO scan due to a bug fixed in
the meantime.  It's unclear if bcm-sf2 wants to connect to PHY @ addr 0 or
is scanning the bus, passing -1 here should keep it functional either way.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Cc: Jiandong Zheng <jdzheng@broadcom.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/bcm-sf2-eth.c

@@ -50,7 +50,7 @@ static int bcm_sf2_eth_init(struct eth_device *dev)
 	eth->port_num = 0;
 	debug("Connecting PHY 0...\n");
 	phydev = phy_connect(miiphy_get_dev_by_name(dev->name),
-			     0, dev, eth->phy_interface);
+			     -1, dev, eth->phy_interface);
 	if (phydev != NULL) {
 		eth->port[0] = phydev;
 		eth->port_num += 1;