i40e: report VF MAC addresses correctly
i40e: report VF MAC addresses correctly

If the user does not assign a VF MAC address, then just report it as
zero.  Attempting to guess the correct primary MAC address of the VF is a
futile and heartbreaking endeavour.

Change-Id: I2673577a160afb6fc55094c890467b44e60c7584
Signed-off-by: Mitch Williams <acfbed6236bdabd688e979c4a715822951672d73@intel.com>
Signed-off-by: Jesse Brandeburg <e6047e445db6578741afb14ef640164ef6b65e4f@intel.com>
Tested-by: Sibai Li <7b32709b4fa5663a47e0d1f9518bcee0920157c8@intel.com>
Signed-off-by: Jeff Kirsher <87e35f5be20bb3e67f4ba6b86f5f6be3085b1b3a@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs