ixgbe: Display EEPROM version in ethtool -i queries

Currently ixgbe does not display the EEPROM version in ethtool -i, where
other drivers do.  The EEPROM version is located at offset 0x29.  This
patch adds support to display it.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 5db82b5..dceae37 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -4191,6 +4191,9 @@
 		         "PCI-Express slot is required.\n");
 	}
 
+	/* save off EEPROM version number */
+	hw->eeprom.ops.read(hw, 0x29, &adapter->eeprom_version);
+
 	/* reset the hardware with the new settings */
 	hw->mac.ops.start_hw(hw);