changed ci_status role header to xenial
changed ci_status role header to xenial

It's required because ci_status needs Xenial base to run.

Change-Id: Ic76a2bcb9a48405830daa4e54bcae59b03a11b8c

fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests