Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Write tempest_conf.yaml for all OPNFV installers"
  - Write tempest_conf.yaml for all OPNFV installers

    It follows "Move tempest logics in tempest_conf.yaml" [1] and then
    allows passing tempest_full and tempest_scenario in OPNFV gates.

    It set all params for all OPNFV installers according to their last
    runs [2][3][4].

    Live migration is out of that custom params as it's currently
    considered as a key feature [5].

    tempest_conf.yaml should be installer-centric and shouldn't take
    scenarios into account.

    It's unclear which installers support glance API v1 which is
    deprecated. Any installer can ask for testing it if supported.
    At least Apex doesn't support it [6].

    Shelve is currenlty disabled because testing it could fail the
    whole tempest run if unsupported. We are missing data about which
    installer may support it.

    [1] https://gerrit.opnfv.org/gerrit/#/c/64067
    [2] Apex: https://artifacts.opnfv.org/logs/functest/lf-pod1/2018-10-25_02-17-25/tempest_full/tempest-report.html
    [3] Compass: https://artifacts.opnfv.org/logs/functest/huawei-virtual9/2018-10-24_04-54-25/tempest_full/tempest-report.html
    [4] Fuel: https://artifacts.opnfv.org/logs/functest/lf-pod2/gambia/2018-10-25_05-57-54/tempest_full/tempest-report.html
    [5] https://artifacts.opnfv.org/logs/functest/ericsson-pod1/gambia/2018-10-27_06-10-07/tempest_full/tempest-report.html
    [6] https://artifacts.opnfv.org/logs/functest/lf-pod1/gambia/2018-10-23_10-34-07/tempest_full/tempest-report.html

    Change-Id: I17c8a2d738daaf1c2e97755c99f8886da8a531aa
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index efc5f89..e1cda14 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit efc5f89524b4e54ba303885398943a93652d3c63
+Subproject commit e1cda14d7990bd7ea65c7952ed756976ce796544