Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Create Stable Branch Jobs for clover"
  - Create Stable Branch Jobs for clover

    Change-Id: I415fa86566686089069eaf6b4b946b9736ab7690
    Signed-off-by: jenkins-ci <jenkins-opnfv-ci@opnfv.org>
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 48656ec..e5555b2 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 48656ec519ea0af460bedd778cd8d45b42ed3bdd
+Subproject commit e5555b2b943ecd5388c0ffa4a2785c9f8732f739