Add libvirt image metadef for hw_pointer_model

[OpenStack Infra]

https://review.openstack.org/386137
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
Your project "openstack/glance" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit fca18a344ccc5099a8894a93f94a980473e42f4f
Author: Matt Riedemann <email address hidden>
Date: Thu Oct 13 13:41:47 2016 -0400

    Add libvirt image metadef for hw_pointer_model

    Nova has supported this image property for awhile so let's
    document it in the glance metadef registry.

    DocImpact: Need to update 'Image service property keys' doc
    in the CLI reference:

      http://docs.openstack.org/cli-reference/glance-property-keys.html

    Change-Id: I7c77fb13f20b59ad764070d14dc98a46f8b7c823

[Brian Rosmaita (brian-rosmaita)]

current location of the page to be updated: https://docs.openstack.org/python-glanceclient/latest/cli/property-keys.html

[Brian Rosmaita (brian-rosmaita)]

https://review.openstack.org/513599

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-glanceclient 2.9.0 release.