Staging: comedi: fix brace coding style issue in adl_pci9111.c

This is a patch to the adl_pci9111.c to fix up a brace warnging found by
the checkpatch.pl tool

Signed-off-by: Rich Folsom <rich.folsom@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>