dt-bindings: input: auo-pixcir-ts: fix gpio and interrupt properties

Add proper interrupt trigger and gpio polarity data to the binding example.

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-5-dmitry.torokhov@gmail.com


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>