This I42dadfd0b62730ca2d34d37cb63f19f6fec75567 patch
remove the supported_pci_vendor_devs option and now
no additional options are required for sriov ml2 mech
driver. The is a clean up patch to remove also the
ml2_conf_sriov.ini from the oslo-config-generator.
Closes-Bug: #1641220
Change-Id: Ida6c0930ce65169a9bc59ef80d6b427b2d5d4e09