Now that dEQP-VK.pipeline.multisample.mixed_attachment_samples.* pass,
it should be safe to also enable this extension on these old chips.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4913>