Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "modify url to relative path to fit with testresults.opnfv.org/test"
  - modify url to relative path to fit with testresults.opnfv.org/test

    Change-Id: Ia600fe310404a1ba45e9571d611eedcdc669dbc7
    Signed-off-by: grakiss <grakiss.wanglei@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 0ace7a9..9ac289d 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 0ace7a99c9b51e2fd4e2ae864ded2b50de295927
+Subproject commit 9ac289d2f084f1ff05048c5b4c817a010d9938f0