add two more device IDs from eGalax' programming guide.
thanks to Jonathan Hopper <jrhopper () gmail ! com>  for pointing out.
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

 drivers/usb/input/touchkitusb.c |    2 ++
 1 file changed, 2 insertions(+)