ibm_newemac: Fix typo reading TAH channel info

This patch fixes a typo in ibm_newemac/core.c
(tah_port should be used instead of tah_ph)
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/ibm_newemac/core.c

@@ -2442,7 +2442,7 @@ static int __devinit emac_init_config(struct emac_instance *dev)
 	if (emac_read_uint_prop(np, "tah-device", &dev->tah_ph, 0))
 		dev->tah_ph = 0;
 	if (emac_read_uint_prop(np, "tah-channel", &dev->tah_port, 0))
-		dev->tah_ph = 0;
+		dev->tah_port = 0;
 	if (emac_read_uint_prop(np, "mdio-device", &dev->mdio_ph, 0))
 		dev->mdio_ph = 0;
 	if (emac_read_uint_prop(np, "zmii-device", &dev->zmii_ph, 0))