Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Remove compass4nfv weekly danube job"
  - Remove compass4nfv weekly danube job

    Change-Id: I5bd83b2dec6d6b28e619a2a427c0406a6a0c6a43
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 10cfa68..bba9d47 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 10cfa68dc2a67890ffe822a9d4fbbb9f80fbd8a3
+Subproject commit bba9d47d826283461ee31a6c437e537f0a93d827