igb: open up SCTP checksum offloads to all MACs 82576 and newer

Going forward the plan is to have the MACs support SCTP checksum offloads
so change the check from == to >=.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/igb/igb_main.c

@@ -1456,7 +1456,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (pci_using_dac)
 		netdev->features |= NETIF_F_HIGHDMA;
 
-	if (adapter->hw.mac.type == e1000_82576)
+	if (hw->mac.type >= e1000_82576)
 		netdev->features |= NETIF_F_SCTP_CSUM;
 
 	adapter->en_mng_pt = igb_enable_mng_pass_thru(hw);