Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: scripts: Fix script to run on Jenkins CI"
  - xci: scripts: Fix script to run on Jenkins CI

    A couple of tweaks are necessary to get it working with Jenkins
    - Jenkins jobs could contain the 'xci' string so make the regexp
    more accurate.
    - Rename VMs to use a more accurate name
    - Fix ssh public key location
    - Create a fresh /etc/hosts since distro may not have one.
    - Set hostname on VM

    Change-Id: I332a424bc8b2de98d7b326c192996b7b12c79dd7
    Signed-off-by: Markos Chandras <mchandras@suse.de>