Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Adding promotion of alex

    This is actually to test somethign in our
    internal jenkins it can be ignored

    Change-Id: I6d6bd1e53280f2f6431ee901c517bb6316dd934a
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 0cc376f..8a3a76b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 0cc376f661bf39f1b2e259e8b32f88ac51f6e944
+Subproject commit 8a3a76b8c6233b15179cc5aa8f4bb98694533e65