Input: wacom - scale up touch width and height values for Intuos Pro

The width and height values reported by the Intuos Pro are not in
surface units as required by the MT protocol. A simple multiplier
of 100x corrects it.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>