niu: Fix typo in comment.

Reported-by: NThomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/sun/niu.c

@@ -8589,7 +8589,7 @@ static int __devinit phy_record(struct niu_parent *parent,
 	if (dev_id_1 < 0 || dev_id_2 < 0)
 		return 0;
 	if (type == PHY_TYPE_PMA_PMD || type == PHY_TYPE_PCS) {
-		/* Becuase of the NIU_PHY_ID_MASK being applied, the 8704
+		/* Because of the NIU_PHY_ID_MASK being applied, the 8704
 		 * test covers the 8706 as well.
 		 */
 		if (((id & NIU_PHY_ID_MASK) != NIU_PHY_ID_BCM8704) &&