Staging: comedi: fix code style errors in unioxx5.c

A patch for unioxx5.c which fixes "trailing statements
should be on next line" errors raised by the
chechpatch.pl tool

Signed-off-by: John Sheehan <john.d.sheehan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>