Update python-tempestconf to 3.0.2 in Train.
Update python-tempestconf to 3.0.2 in Train.

The review updates the tag for python-tempestconf to
3.0.2 version in Train.

Depends-On: https://review.rdoproject.org/r/#/c/28823/

Change-Id: I00cb1f45dd818b46a5145cf4c453969360135b18

redhat-openstack/rdoinfo