Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "Move configuration network templates"
  - Move configuration network templates

    The jinja templates that are used for networking setup are based on the
    openstack-ansible needs, those needs can differ for another installers.
    This change propose to make the network configuration depending on the
    installer.

    Signed-off-by: Victor Morales <victor.morales@intel.com>
    Change-Id: Ie805c3c7716393377d4dfcb32ed794cc1039d515