Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Calipso verify job is running on master"
  - Calipso verify job is running on master

    Jobs should not run on master
    python 3 not avaliable on master (unless venv is called)
    switch to opnfv-build-defaults

    Change-Id: I03cf9ae3d07033b68f5b6db1b13037febb9f729d
    Signed-off-by: agardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index e36ce6e..d996e3a 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit e36ce6efa71fb0fb5be8f2e737cebe814b644cdf
+Subproject commit d996e3a997d3b300345a7892a99a8b03a9459d33