Input: goodix - add support for Goodix GT9286 chip

The Goodix GT9286 is a capacitive touch sensor IC based on GT1x.

This chip can be found on a number of smartphones, including the
F(x)tec Pro 1 and the Elephone U.

This has been tested on F(x)Tec Pro1 (MSM8998).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Link: https://lore.kernel.org/r/20210109135512.149032-2-angelogioacchino.delregno@somainline.org


Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>