Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[stor4nfv] Create stable/fraser Branch"
  - [stor4nfv] Create stable/fraser Branch

    Set the stable/fraser branch location to the commit intead of the
    Change-ID.

    Change-Id: I3f3c4ba3465c399d001464c6922d4725cfd9a2df
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 320f1f1..1cb5a82 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 320f1f1f156c0609dc6f0f7f8195e9768d9d37c7
+Subproject commit 1cb5a82020e1c216199ee1d6c2bb3f294789482a