HID: hid-multitouch: add support for SiS panels

commit a6802e008e19845fd9669511b895f7515ef9c48b upstream.

Add support for SiS multitouch panels.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>