Comment 21 for bug 1504536

Reviewed: https://review.openstack.org/591489
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=75b86f8790ee07a66431ada8d3cd57590e9292eb
Submitter: Zuul
Branch: stable/queens

commit 75b86f8790ee07a66431ada8d3cd57590e9292eb
Author: Hongbin Lu <email address hidden>
Date: Thu Aug 9 21:02:01 2018 +0000

    Update metering driver to load interface driver

    Currently the metering iptables driver is using the old method
    to load the interface driver. This patch allows it to load
    interface driver via stevedore aliases.

    Change-Id: I9e3027c1ec695ec3a09db0c53a0388e406e4ced6
    Related-Bug: #1504536
    (cherry picked from commit 38309ca4dc79e033a7b8384f4e9f1224c5a69524)