ironic: run valid test in whitelist
ironic: run valid test in whitelist

ironic_tempest_plugin.tests.api.admin.test_drivers is the new namespace
of the test when running with the tempest plugin.
This will re-activate the Tempest tests for Ironic witht he new plugin.

Depends-On: Iddd38ccf9bee8de4eced61c72a63e274c753ac32
Change-Id: I1be0c45529dbec2f8c2da5658f775e2cdee35111

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration