Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: installer: Do not use XCI_ANSIBLE_PARAMS on remote nodes

    The XCI_ANSIBLE_PARAMS is used to pass extra Ansible parameters to XCI.
    However, these parameters may not make sense when Ansible is running on
    any of the remote nodes, so we should't use it there. If passing
    information to "remote" Ansible is required, then we need to come up
    with a new variable.

    deploy-scenario:os-nosdn-nofeature
    installer-type:osa

    Change-Id: Ib6343fbfe3af1514c2e7e8948c12e3b19b455fe3
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index d736028..fafdbbc 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit d736028bd362959f219265b220f773fd76e46315
+Subproject commit fafdbbc7a1902f9b54144052781fd05450aec842