Staging: comedi: fix code indent coding style issues in daqboard2000.c

This is a patch to daqboard2000.c file that fixes  code indent errors found by the checkpatch.pl tool

Signed-off-by: Gbenga Adalumo <gbengadev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>