Comment 6 for bug 1715787

Reviewed: https://review.openstack.org/587328
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=8c0676fe33e7b253d68a8a1798beafd5d864d540
Submitter: Zuul
Branch: stable/queens

commit 8c0676fe33e7b253d68a8a1798beafd5d864d540
Author: Tony Breeds <email address hidden>
Date: Thu Aug 31 15:21:45 2017 +1000

    IPMI doesn't mandate a username or password so tripleo shouldn't either

    Give driver types a little more flexibility in defining which fields are
    mandated.

    Blueprint: multiarch-support
    Related-Bug: 1715787
    Change-Id: I6c72b03512a0815326a1b62bc88231b17340c45f
    (cherry picked from commit ca290cf4afcfcabd3e678fdba9e0099cc477739d)