Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Compass4NFV add new scenario nosdn-kvm"
  - Compass4NFV add new scenario nosdn-kvm

    Compass4NFV has integrated KVM. We add this scenario to CI

    Change-Id: I9e0625147f5c5f8adb46e4bf0f645a2fb3de3634
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index a12fc4a..5b77ae7 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit a12fc4ac05e0fc54d6596f9683d5940a7a17dbdf
+Subproject commit 5b77ae789540f805199831427930476c9579916b