Comment 3 for bug 1639235

Reviewed: https://review.openstack.org/396341
Committed: https://git.openstack.org/cgit/openstack/nova-powervm/commit/?id=75e9992b11e27bcde291f73ba6f6235727c9aae5
Submitter: Jenkins
Branch: stable/newton

commit 75e9992b11e27bcde291f73ba6f6235727c9aae5
Author: Drew Thorstensen <email address hidden>
Date: Fri Nov 4 09:30:32 2016 -0400

    Fix rollback op's search call

    The pypowervm search call only accepts one input. We need to key off a
    few (PVID and vswitch id). This change updates the vif rollback code to
    search appropriately.

    Change-Id: Ib813fe4b668d208b379ec05cacd1704f60c7abc6
    Closes-Bug: 1639235