dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

Create new binding file for the FocalTech FT8112 due to
new touchscreen chip. Confirm its compatible, reg for the
device via vendor, and set the interrupt and reset gpio
to map for Skywalker platform.
FocalTech FT8112 also uses vcc33/vccio power supply.

Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251117094041.300083-1-Daniel_Peng@pegatron.corp-partner.google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>