drm/edid: keep propagating drm_edid to display info

We'll need to propagate drm_edid everywhere.

v3: Update comment to refer to update_display_info() (Ankit)

v2: Use drm_edid_legacy_init()

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/20220511092104.4179637-1-jani.nikula@intel.com