drm/i915/dvo: Log about what was detected on which DVO port

Currently it's not 100% obvious which DVO encoder chip was
found on which port. Leave a slightly better trace in log.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-11-ville.syrjala@linux.intel.com


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