Backport role specific tag for NeutronBridgeMappings to stable/queens

[Saravanan KR]

Patch https://review.opendev.org/#/c/544170 add role-specific tags to missing parameters, without which a warning will be shown during the deploy command.

Backport this patch to stable/queens branch

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/712027

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/712027
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=e13e473ddb3cc31618775de9f18582df4135392f
Submitter: Zuul
Branch: stable/queens

commit e13e473ddb3cc31618775de9f18582df4135392f
Author: Saravanan KR <email address hidden>
Date: Wed Feb 14 11:26:32 2018 +0530

    Add role_specific tag to missing role-specific parameters

    A tag 'role_specific' should be added to the parameters of
    a service which are accepted as role-specific. Adding the tag
    for some of the missing parameters.
    Closes-Bug: #1866785

    Change-Id: Ic205b4c6cf219f37025e6ddb61455e1d48ec480d
    (cherry picked from commit 6846341a60593f62d14795caa7bdb1c1cde7ce7b)

[OpenStack Infra (hudson-openstack)]

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