Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge changes from topic 'set-proper-constrains'

    * changes:
      xci: OSA: Ensure proper constrains are applied to pip installations
      xci: Move functest required packages to the functest role

  - xci: OSA: Ensure proper constrains are applied to pip installations

    We need to make sure that the pip packages that we install are
    compatible with the OSA components.

    Change-Id: I87e80dc9b8fb862d9f9039d835b0908f752de3ca
    Signed-off-by: Markos Chandras <mchandras@suse.de>
  - xci: Move functest required packages to the functest role

    The docker packages that we install in the OPNFV VM are needed by
    functest so add them to the related role.

    Change-Id: I6ebe76fd030859f757d41ecf20c30ab76888ee9c
    Signed-off-by: Markos Chandras <mchandras@suse.de>