tg3: Turn off the debug UART for 57765

If the debug UART is left enabled, the LEDs will not work properly.
This patch disables the debug UART.
Signed-off-by: NMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: NMichael Chan <mchan@broadcom.com>
Reviewed-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -13328,7 +13328,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 		tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
 
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
+	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
+	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
 		tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
 
 	if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||