drm/i915: Simplify intel_panel_info()

No need for all this connector type special casing. If the
connector has a fixed mode just print it, otherwise don't.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220311172428.14685-5-ville.syrjala@linux.intel.com


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