staging: comedi: icp_multi: remove rangecode from boardinfo

The analog inputs and outputs for this driver use the same table
to set the analog range. Remove the boardinfo for it and just
reference the table directly.

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>