staging: comedi: cb_pcidas: add whitespace to all the #define's

Add whitespace to all the #define's in the driver in order to
improve the readability. Fix all the comments that are, or
already were, > 80 characters.

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>