drm/i915/bios: Pimp the VBT backlight data BDB version comments

Add the missing BDB version number information for some of
the backlight fields in VBT.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240321161806.31714-6-ville.syrjala@linux.intel.com


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