Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 417d91d8d6de7b0887759b5a17a0bafa5aed7cbe
  - xci: Fix scenario determination logic

    Function override_xci_flavor exits with 0 early, preventing
    the rest of the script and especially override_scenario function
    to run. This makes it impossible to verify patches that contains
    installer-type or deploy-scenario in commit message since the
    generated scenario.properties file contains only XCI_FLAVOR in
    it, causing verify jobs to fail determining the installer type
    and the scenario. See the example.

    https://build.opnfv.org/ci/job/xci-verify-ubuntu-virtual-master/2937/console

    This change removes exit 0 from override_xci_flavor and moves
    the call to it to after override_scenario function.

    JIRA: XCI-21

    Change-Id: Ic7f943ba5e1562177b59a8215cd8a6f2a58db093
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3ecb0c3..417d91d 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3ecb0c33570d1b37a2034db84c499fcc3a95012b
+Subproject commit 417d91d8d6de7b0887759b5a17a0bafa5aed7cbe