drm/edid: convert drm_gtf_modes_for_range() to drm_edid

We'll need to propagate drm_edid everywhere.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b50377ce67fd3cee6628ea5865c80fa0fa7da990.1652097712.git.jani.nikula@intel.com