[PATCH] USB: ftdi_sio: new PID for PCDJ DAC2

The attached patch adds a new PID for the ftdi_sio driver.  It will
enable support for PC-DJ's DAC-2 controller module
(more information on http://www.pcdjhardware.com/DAC2.asp

)

Signed-off-by: Wouter Paesen <wouter@kangaroot.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>