platform/x86: think-lmi: Don't display unnecessary authentication settings

platform/x86: think-lmi: Don't display unnecessary authentication settings

If Opcode support is available (which is the standard for all platforms
going forward) then there is no need to have the encoding and kbdlang
attributes visible.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230601200552.4396-8-mpearson-lenovo@squebb.ca
Signed-off-by: Hans de Goede <hdegoede@redhat.com>