Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: Drop AIO specific playbook

    The configure-opnfvhost playbook which is used for all flavors except
    AIO can also be used for AIO if it's adapted to not configure networking
    on the host and also do not fail if there aren't any OSA variables files
    available so lets do all that in order to avoid duplicating code across
    flavors.

    Change-Id: I58379d8b52094294b9349494753ffcdd44982013
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index b2dfffa..ce92c66 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit b2dfffae695ea299ac5f11e48f99068390bcc671
+Subproject commit ce92c66443ce7baa46f9d380c3f307d42f4881f0