Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[compass4nfv]Add gambia jobs"
  - [compass4nfv]Add gambia jobs

    Change-Id: I0e9521a4b5dcb025464b6b193848454aacd5a86c
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 247aae2..0f6d88e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 247aae29c4509d084bb2410af2d8b43e6b7d99e3
+Subproject commit 0f6d88ee79c2a45cb9302db003514b901f20aa8e