Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Fix Yamllint Violations for jjb/bottlenecks"
  - Fix Yamllint Violations for jjb/bottlenecks

    JIRA: RELENG-254

    Change-Id: I56e1b6e776cac44afc17cf73db09cf8220d1b5f0
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 39b7e05..ae54a8d 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 39b7e0578fadf755fc1f57996818bfa181aae11b
+Subproject commit ae54a8d563009e10e7a2709136b741d47d659dc9