Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Remove Archived Project Jobs"
  - Remove Archived Project Jobs

    Removes jobs for:

     - domino
     - escalator
     - vnf_forwarding_graph

    Change-Id: Id1364d38d7f1f8d8e1bb396be7bf84899139973f
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index cd667ba..40b3239 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit cd667ba9cbc52aa2476bd5379f4a3039683c2f67
+Subproject commit 40b3239551efa65067e57183e43a62e9b2432124