BugLink: http://bugs.launchpad.net/bugs/1546572

We already query this at driver init, so use that info.  Also
handles virtualization cases.
Reviewed-by: monk liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 50171ebe)
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>