Include ansible commands for ansible linting
Include ansible commands for ansible linting

The plugin repo needs to be cloned for ansible-lint to
understand ansible plugins. The commands currently
reside in tox.ini under the ansible section and are not
currently included. This commit fixes that error.

Change-Id: I2acdeeaff6af079f661b7bb5eadd7ba60123a4af

openstack/openstack-ansible-galera_client,openstack/openstack-ansible-galera_client