Comment 6 for bug 1693470

Reviewed: https://review.openstack.org/468838
Committed: https://git.openstack.org/cgit/openstack/compute-hyperv/commit/?id=93dc6f791bd6bd516cee5c8165e3e09ec8c158b9
Submitter: Jenkins
Branch: stable/ocata

commit 93dc6f791bd6bd516cee5c8165e3e09ec8c158b9
Author: Lucian Petrut <email address hidden>
Date: Tue May 23 22:47:20 2017 +0300

    [Trivial] Hyper-V: accept Glance vhdx images

    Although the Hyper-V driver is used with VHDX images most of the
    time, it rejects Glance images marked as VHDX.

    Note that for legacy reasons, people usually just mark them as vhd
    at he moment, which is misleading and unsafe.

    This change ensures that such images are handled properly.

    Closes-Bug: #1693470

    Change-Id: I8cf4339cdf17721c257cf7aa5597594aa2d1c53f
    (cherry picked from commit 387c53ccccd85a1ca43d9775ad12e4d98d86ebff)