staging: comedi: dt282x: tidy up Digital I/O subdevice init

For aesthetics, add some whitespace to the Digital I/O subdevice init.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/comedi/drivers/dt282x.c
Simple merge