staging: comedi: mite: inline mite_setup()

This exported function simply calls mite_setup2() with the 'use_iodsbsr_1'
parameter set to 0.

Inline the simple function and remove the EXPORT_SYMBOL_GPL.

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>