Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "openci: Add OPNFV scenario composition and test jobs for the demo"
  - openci: Add OPNFV scenario composition and test jobs for the demo

    The flow is
    - OPNFV compose job gets triggered by the ArtifactPublishedEvents published by
    ODL and ONAP autorelease jobs, composing the corresponding scenarios. At the
    end, CompositionDefinedEvent is published for the composed scenario.
    - OPNFV test job gets triggered by the CompositionDefinedEvents published by
    OPNFV compose jobs, deploying and testing the composed scenario. At the end,
    ConfidenceLevelModifiedEvent is published for the tested scenario which can
    be consumed by ODL and/or ONAP Jenkinses, doing further promotion.

    Change-Id: Ice1736d65f3f2b26e849302fec2bb0c579da4a1c
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 4b3af2d..c36d2b3 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 4b3af2d3acacb16a7ec785f918bb4634666be3cb
+Subproject commit c36d2b37f572a52217831b6219de80fcd0326602