net, phy: fix AR8031 phy_mask

AR8035 driver will be never applied because of wrong mask for
AR8031 driver. Fix this.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reported-by: Pavel Nakonechny <pavel.nakonechny@skitlab.ru>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Patch: 276944

drivers/net/phy/atheros.c

@@ -50,7 +50,7 @@ static struct phy_driver AR8021_driver =  {
 static struct phy_driver AR8031_driver =  {
 	.name = "AR8031/AR8033",
 	.uid = 0x4dd074,
-	.mask = 0xfffff0,
+	.mask = 0xffffff,
 	.features = PHY_GBIT_FEATURES,
 	.config = ar8021_config,
 	.startup = genphy_startup,