Currently, our tripleo periodic jobs are failing, while our check jobs
are passing. This is because build-test-packages is not building the
tip of master version of the collections, instead using the version
built in rdo. This patch explicitly adds ansible-collection-openstack to
the change list so it always gets picked up by build-test-packages.

Change-Id: I6938c8373872daed8632429df42d20396980bc76