Comment 3 for bug 1934466

Reviewed: https://review.opendev.org/c/openstack/neutron/+/818911
Committed: https://opendev.org/openstack/neutron/commit/770b64b90e0ada90a40538830002fc447a8dee9c
Submitter: "Zuul (22348)"
Branch: master

commit 770b64b90e0ada90a40538830002fc447a8dee9c
Author: yatinkarel <email address hidden>
Date: Tue Nov 23 17:10:50 2021 +0530

    Fix tunnel_types in ml2 ovs sample config

    Without this port binding fails with below error:-

    Network <nw> is type of vxlan but agent <host> or mechanism
    driver only support ['gre', 'local', 'flat', 'vlan'].

    Also fix permissions of /opt/stack/devstack in ml2 ovs testing
    documentation and added these files to irrelevant-files to skip
    running functional jobs as these files are not used in those jobs.

    Related-Bug: #1934466
    Change-Id: I3ca2ea19bf5e316e580669caab4c607447034a11