Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 8179161090e23820e84190bffc910b8d010edb28
  - Merge "Create Moselle stable branch for Kuberef"
  - Create Moselle stable branch for Kuberef

    This change adds Moselle stable branch
    for Kuberef.

    Change-Id: Ibee06338e8c67ad0c2c3c44b9c4fd6418d9cd8de
    Signed-off-by: Rihab Banday <rihab.banday@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 19238be..8179161 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 19238be561fabd756258132a60f858aae3ce56de
+Subproject commit 8179161090e23820e84190bffc910b8d010edb28