Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "remove scenarios"
  - remove scenarios

    compass4nfv don't support openo, moon,onos in master branch
    so we remove these scenario

    Change-Id: Ibfad2b352b1236dac48453101860cdd538528aa3
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index a659b4b..4c0f6bc 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit a659b4b286bf9582accf5645e7e78f505a4fdfc6
+Subproject commit 4c0f6bcadfb6b323505a6dfa719eca3832a6f127