Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: file: install-ansible.sh: Update script from latest Bifrost"
  - xci: file: install-ansible.sh: Update script from latest Bifrost

    Update our own copy of the Ansible installation script to take some
    Bifrost fixes into consideration. We also upgrade the pip and setuptools
    to the latest available version if possible.

    Change-Id: I5e51099b2698f0b03922d1364e83bc91cfadc00c
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 54afc4c..0234db9 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 54afc4c3a060793d68b362584a7ab0788ff53617
+Subproject commit 0234db9d76656d8f28ba3ee11367e08703ccd769