Update git submodules

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

    JIRA: RELENG-254

    Change-Id: I2a4ba4a8a60aaf6f0a9859726abfd8f1b73df82f
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d7dbd98..b22f2c3 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d7dbd98856cc51305c05c2eb8b18c3184a835d57
+Subproject commit b22f2c3311260718f6fdf70a143739884a149890