Updated openstack/openstack
Project: openstack/tempest  463189b6bfb546961285524cd9734dd2ce9def96
null
fix import for default clients in clients.py

All default clients will be imported in clients.py even
if the services are disabled in tempest.conf. That will
cause import error when run tests. This patch moves the
import statements into relevant functions.

Closes-Bug: #1307323

Change-Id: I1260cceb2821400eb42959cb701e40ae449dd452