Function cros_codecs::utils::vaapi::supported_formats_for_rt_format

fn supported_formats_for_rt_format(
    display: Rc<Display>,
    rt_format: u32,
    profile: i32,
    entrypoint: u32,
    image_formats: &[VAImageFormat]
) -> Result<HashSet<FormatMap>>

Returns a set of supported decoded formats given rt_format