Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[ovno] Create stable/fraser branch"
  - [ovno] Create stable/fraser branch

    Creating the stable branch for ovno at the request of the release
    manager.

    Change-Id: Ie9d4b0911d44ba72bcff61bac4cb5356eeab625a
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 514b7dc..d071c47 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 514b7dc72aae7d19af016815b4906916995757fe
+Subproject commit d071c470e2a4241f4b021dd266ad26baf4e0ad0e