the midlayer uses -1 as a wildcard when processing requests for probes or detaches. switch the types from u_int to int in the vscsi ioctl that asks for probes or requests.
the midlayer uses -1 as a wildcard when processing requests for probes or
detaches. switch the types from u_int to int in the vscsi ioctl that asks
for probes or requests.

this is so claudio@ can get all luns on a target probed in iscsid with a
single ioctl call.

ok deraadt@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars