Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "openci: Add skeletons for ODL autorelease and promotion jobs"
  - openci: Add skeletons for ODL autorelease and promotion jobs

    The jjb will be proposed to ODL Releng once it is verified on OPNFV
    Jenkins.

    The flow is
    - ODL autorelease job publishes an ArtifactPublishedEvent to make the
    availability of a new version that is tested known to the world
    - ODL promote job gets triggered by a ConfidenceLevelModifiedEvent
    published by OPNFV CI to promote autorelease artifact further.

    The prototype doing realistic stuff will be built on top of these jobs
    and
    - parse the triggering event to find the location of autorelease
    artifact
    - download the artifact for composing ODL scenario
    - run the deployment and testing of ODL scenario

    Please note that this change just adds the basic structure for the jobs
    to share the idea. Further changes will add triggering, message
    costruction, and publishing.

    Change-Id: I51d7e0cfcb5f2552fcc9ac287ed12ed70f582895
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>