Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Apex: Fixes branch checking

    With the move to upstream artifacts post-fraser the checks to use
    upstream artifacts were relying on BRANCH == 'master'. This doesn't
    scale as we preserve fraser functionality but add more branches like
    gambia. Therefore inversing the logic to accomodate for new branches.

    Change-Id: Ice17f6afd33744f44d253d320a194c3f6d02d8bf
    Signed-off-by: Tim Rozet <trozet@redhat.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index f836a45..fca363d 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit f836a454d1ef4ac2375dd13694227764af433755
+Subproject commit fca363d44c64cbdf5484f30c21d901de5ee8c368