staging: comedi: cb_pcimdas: update driver comment

The Comedi driver comment mentions a couple of manual configuration
options, but manual configuration via the COMEDI_DEVCONFIG ioctl and
comedi "attach" handler is no longer supported by this driver.  Update
the comment appropriately.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/cb_pcimdas.c

@@ -27,8 +27,10 @@
  * Written to support the PCIM-DAS1602/16 on a 2.4 series kernel.
  *
  * Configuration Options:
- *     [0] - PCI bus number
- *     [1] - PCI slot number
+ *   none
+ *
+ * Manual configuration of PCI cards is not supported; they are configured
+ * automatically.
  *
  * Developed from cb_pcidas and skel by Richard Bytheway (mocelet@sucs.org).
  * Only supports DIO, AO and simple AI in it's present form.