Input: xpad - add support for Flydigi Apex 5

Add Flydigi Apex 5 to the list of recognized controllers.

Reported-by: Brandon Lin <brandon@emergence.ltd>
Reported-by: Sergey Belozyorcev <belozyorcev@ya.ru>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250903165114.2987905-1-lkml@antheas.dev


Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>