The touchscreen on the Teclast x98 Pro is also mounted upside-down in
relation to the display orientation.

Signed-off-by: Simon Beginn <linux@simonmicro.de>
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20201117004253.27A5A27EFD@localhost


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