libva-utils: Force the use of DRM.

This CL forces libva-utils-2.6.0.ebuild to use DRM because we don't ever
use VA-API over X11 or Wayland on Chrome OS. This is a cleanup to make
it possible for the libva uprev to also not involve IUSE flags that we
don't care about.

BUG=b:159825228
TEST=emerge-eve media-video/libva-utils

Cq-Depend: chromium:2278031
Change-Id: I04e2b23e76425096724b66446d6ad83653d2328e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2276738
Tested-by: Andres Calderon Jaramillo <andrescj@chromium.org>
Commit-Queue: Andres Calderon Jaramillo <andrescj@chromium.org>
Reviewed-by: Miguel Casas <mcasas@chromium.org>
2 files changed