Skip release notes jobs for pre-Mitaka os-brick and python-cinderclient
Skip release notes jobs for pre-Mitaka os-brick and python-cinderclient

The os-brick and python-cinderclient projects did not have reno release
notes until the Mitaka release. This adds them to the list of projects
to skip the gate-*-releasenotes tests for Liberty and earlier.

Change-Id: I1b756a7e7eba6c92c5d4b68032273eb1cc7d7e99

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