FROMGIT: drm/virtio: advertise features to userspace

New api changes are now available to userspace. Also, the
comparison to true is redundant, so remove it.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-19-gurchetansingh@chromium.org


Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 378f257d583072b3a6ae0a2fa73fbd6497686dac
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

 master)

BUG=b:171715474
TEST=compile

Change-Id: Ia41069678f876be7dae3ac178987d8955bb85d6b
Signed-off-by: Guenter Roeck <groeck@chromium.org>
(cherry picked from commit 2c507d632eb97c608aa7941e277dec54e6f858fd)