drm/gud: switch to struct drm_edid

Prefer struct drm_edid based functions over struct edid.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/c519a9b9d3c3c9a413de33b99b97a1120f774f2d.1713273659.git.jani.nikula@intel.com


Signed-off-by: Jani Nikula <jani.nikula@intel.com>