Comment 9 for bug 1793529

Reviewed: https://review.openstack.org/612452
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=b411b5ff59ef182b1e392d0a41dfa02d5e0ecc6b
Submitter: Zuul
Branch: stable/rocky

commit b411b5ff59ef182b1e392d0a41dfa02d5e0ecc6b
Author: LIU Yulong <email address hidden>
Date: Fri Sep 28 18:33:28 2018 +0800

    Fix dvr ha router gateway goes wrong host

    During L3 agent restart, the dvr ha router gateway port
    binding host may change because the multiple ha router
    scheduled hosts.

    After this patch, we return the 'master' ha binding host
    directly during the gateway port create. And do not let
    the original 'master' (current is backup) host override
    the gateway port binding host.

    Closes-Bug: #1793529
    Change-Id: Icb2112c7f0bd42c4f4b1cf32d6b83b6d97f85ef7
    (cherry picked from commit 1973a037c29b0fc8bf6347771ed930726d1648f5)