Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "fix conditional step label"
  - fix conditional step label

    see error log

    https://build.opnfv.org/ci/view/compass4nfv/job/compass-os-nosdn-nofeature-ha-baremetal-daily-danube/57/console

    Change-Id: I925658a3f2c20e51153b4c6298e271e50a5673b5
    Signed-off-by: MatthewLi <matthew.lijun@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 2429648..9917b35 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 2429648fb065bf9b27f7cb2555232a14db74eb29
+Subproject commit 9917b3562150a25a8fa307d634d4c721bd4d3f1e