Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Merge "xci: nfvi: OSA: Set 'pipefail' when SSHing on the OPNFV host"
  - xci: nfvi: OSA: Set 'pipefail' when SSHing on the OPNFV host

    We need to set the 'pipefail' option so if an SSH command fails we stop
    the deployment instead of silently ignoring it just because the right
    leg of the pipe succeeded.

    Change-Id: Iebc720fbd3e6e96fc7135a6cf15e3c0941974d2c
    Signed-off-by: Markos Chandras <mchandras@suse.de>