[TG3]: Add firmware version info

Add fw_version information to ethtool -i.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 6b05d57..baa34c4 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2271,6 +2271,7 @@
 	u32				led_ctrl;
 
 	char				board_part_number[24];
+	char				fw_ver[16];
 	u32				nic_sram_data_cfg;
 	u32				pci_clock_ctrl;
 	struct pci_dev			*pdev_peer;