phylib: update atheros ar803x phy

As AR8031 and AR8033 have same PHY ID 0x4dd074, they use the
common driver. Currently AR8031_driver didn't work for AR8033,
hence updated it to have it work on AR8031/AR8033.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>

drivers/net/phy/atheros.c

@@ -48,11 +48,11 @@ static struct phy_driver AR8021_driver =  {
 };
 
 static struct phy_driver AR8031_driver =  {
-	.name = "AR8031",
+	.name = "AR8031/AR8033",
 	.uid = 0x4dd074,
 	.mask = 0xfffff0,
 	.features = PHY_GBIT_FEATURES,
-	.config = genphy_config,
+	.config = ar8021_config,
 	.startup = genphy_startup,
 	.shutdown = genphy_shutdown,
 };