Neutron Routed Networks (segments service plug-in) no longer default for TripleO overcloud

Reviewed: https://review.opendev.org/663019
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=6b9b80d88d003a5ec4c8ae20553131b5a6bc12fc
Submitter: Zuul
Branch: master

commit 6b9b80d88d003a5ec4c8ae20553131b5a6bc12fc
Author: Bogdan Dobrelya <email address hidden>
Date: Tue Jun 4 14:12:10 2019 +0200

    Enabling Neutron Routed Provider Networks (segments)

    The 'segments' plugin will be added to the NeutronServicePlugins.

    Neutron routed networks was enabled by default[1], with the switch
    to OVN it was removed[2] from the list of default service plug-ins.

    It makes sense to enable the plug-in by default so that it's easy
    to scale out existing provider networks without being limited by
    the restrictions[3] related to scaling existing provider networks
    that was created prior to enabling the service_plugin.

    [1] https://review.opendev.org/562932
    [2] https://review.opendev.org/593056
    [3] https://opendev.org/openstack/neutron/src/branch/master/releasenotes/notes/allow-update-subnet-segment-id-association-1fb02ace27e85bb8.yaml

    See for details:
    https://docs.openstack.org/neutron/latest/admin/config-routed-networks.html

    Co-Authored-By: Harald Jensås <email address hidden>
    Closes-Bug: #1831969
    Change-Id: Ie67134719abc3b89dff19130e1557517bdc18714
    Related-blueprint: tripleo-routed-networks-deployment
    Signed-off-by: Bogdan Dobrelya <email address hidden>

This issue was fixed in the openstack/tripleo-heat-templates 11.1.0 release.