Don't fall when just loading pankov2 modules

this avoids loading warnings on salt-master that may not have
os-client-config installed, as salt tries to load them irrespective of
__virtual__() result.

Change-Id: Ib97eb5c1c91a88d2757478f287441bbe5cdfba49
Related-Issue: https://mirantis.jira.com/browse/PROD-26920
1 file changed