Promote CentOS7 Heat, Horizon & Telemetry to non-voting for OSA
Promote CentOS7 Heat, Horizon & Telemetry to non-voting for OSA

In the ongoing effort to add CentOS7 support to OpenStack-Ansible, the
next roles to receive attention will be the Heat, Horizon, Ceilometer,
Aodh, and Gnocchi roles.

This patch promotes those roles CentOS7 jobs from experiemental to
non-voting.

Change-Id: I3cd97c1ae038fa8e856bbaad9d9cd6883c3dd1bc

Tesora/tesora-project-config,Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config