staging: comedi: pcl730: tidy up pcl730_attach()

For aesthetic reasons, add some whitespace to the subdevice init
and reorder it a bit.

Remove the blank line printk at the end of the attach.

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