backends/drm: use the native colorimetry again
In a refactor I effectively reverted fb085d39, which was not intentional and breaks things for screens where the "default" colorimetry signals sRGB primaries (which seems to usually be wrong).
In a refactor I effectively reverted fb085d39, which was not intentional and breaks things for screens where the "default" colorimetry signals sRGB primaries (which seems to usually be wrong).