net: phy: bcm7xxx: do not use PHY_BRCM_100MBPS_WAR

There is no need for the PHY driver to check PHY_BRCM_100MBPS_WAR since
that is redundant with checking the PHY device supported features. Get
rid of that workaround flag.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/bcm7xxx.c

@@ -257,8 +257,8 @@ static int bcm7xxx_config_init(struct phy_device *phydev)
 	phy_write(phydev, MII_BCM7XXX_AUX_MODE, MII_BCM7XX_64CLK_MDIO);
 	phy_read(phydev, MII_BCM7XXX_AUX_MODE);
 
-	/* Workaround only required for 100Mbits/sec */
-	if (!(phydev->dev_flags & PHY_BRCM_100MBPS_WAR))
+	/* Workaround only required for 100Mbits/sec capable PHYs */
+	if (phydev->supported & PHY_GBIT_FEATURES)
 		return 0;
 
 	/* set shadow mode 2 */