tg3: Make 57791 and 57795 10/100 only

This patch adds the 57791 and 57795 to the list of devices that only
support 10 and 100 Mbps speeds.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -13588,6 +13588,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	      tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
 	      tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
 	    (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET))
 		tp->tg3_flags |= TG3_FLAG_10_100_ONLY;