Refactor tox to use the role
Refactor tox to use the role

This patch switches tox usage to use the new role as well uses
Ansible to move build output.

Change-Id: Ie01e96edac1e1fd9e7f0a3e2d6b39f813a561aa2

openstack-infra/openstack-zuul-jobs,openstack-infra/openstack-zuul-jobs