net: phy: atheros: Fix masks for AR8035 and AR8021

The masks were ignoring the last 4 bits which didn't allow detection differences
between the ar8031 and ar8035.

Signed-off-by: Jon Nettleton <jon.nettleton@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Patch: 288018
diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c
index 215658a..b20b4df 100644
--- a/drivers/net/phy/atheros.c
+++ b/drivers/net/phy/atheros.c
@@ -40,7 +40,7 @@
 static struct phy_driver AR8021_driver =  {
 	.name = "AR8021",
 	.uid = 0x4dd040,
-	.mask = 0xfffff0,
+	.mask = 0x4fffff,
 	.features = PHY_GBIT_FEATURES,
 	.config = ar8021_config,
 	.startup = genphy_startup,