Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Set JJB version in Releng CI Jobs

    Moves the jjb-version configuration from globals to releng CI jobs. This
    was not being pulled into the '{project-name}-ci-jobs' configuration and
    kept our JJB version at 2.2.1.

    Change-Id: I33a62e639bbca6d519957515af591615543d27b7
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 9c45ad2..0b400b6 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 9c45ad26b5dcc4bd0c02c142771e5ee2b27116af
+Subproject commit 0b400b6d96ca82fd7a17c704fcf8a56337a5adfe