Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "run for E release."
  - run for E release.

    As JOID do not have access to any other POD so changing from
    master to E release for E release build.

    Change-Id: I1ba9b92be0c3056023eac0e5869de041cf429344
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 95ebd0e..8e72b68 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 95ebd0ed6d37d9228b024ecb2f5241abdb252eae
+Subproject commit 8e72b68b83fac5417fe78a3a9f3b416b72aca129