configured ovs bridge as part of the Openvswitch-db container

[sean mooney]

Currently when deploying openstack with kolla and ovs, the ovs bridge is configured as part of the
Openvswitch-vswitchd container.

this change request proposes moving the kolla_ensure_openvswitch_configured
scirpt to the ovs db container and reordering the "Ensuring OVS bridge is properly setup" task to
before the vswitchd container is started.

https://github.com/openstack/kolla/blob/master/ansible/roles/neutron/tasks/start.yml

this change will help to enable reuse of the neutron role with ovs and dpdk in the future.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/252622

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/252622
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=9ce814619aa951f7d87b14f2ca67e7128ac12d2c
Submitter: Jenkins
Branch: master

commit 9ce814619aa951f7d87b14f2ca67e7128ac12d2c
Author: Sean Mooney <email address hidden>
Date: Wed Dec 2 21:05:16 2015 +0000

    configure ovs bridge in openvswitch-db container

    - this change moves the ovs_ensure_configured.sh file to the
      openvswitch-db container.
    - this change reorders the plays in ansible/roles/neutron/tasks/start.yml
      to configure the ovs bridges before starting the vswitchd container.

    Change-Id: Ied1a82d48377534c15680406df9a96caf3b79515
    Closes-Bug: #1522133