Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Extend the Functest reporting black list

    remove
    * tempest_full_parallel
    * rally_full

    Change-Id: Ibb944e7d32dc3cf0fc0b87a269c9e2f0327410e4
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 70fa389..2455aae 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 70fa3892a2b4b610b2eb65626e8fdd223a8dec6a
+Subproject commit 2455aae3c44273b4354b796e061dfb57588e66a0