s390x/kvm: fix run_on_cpu sigp conversions

s390x/kvm: fix run_on_cpu sigp conversions

Commit 14e6fe12a ("*_run_on_cpu: introduce run_on_cpu_data type")
attempted to convert all users of run_on_cpu to use the new
run_on_cpu_data type. It missed to change the called sigp_* routines,
however. Fix that.

Fixes: 14e6fe12a ("*_run_on_cpu: introduce run_on_cpu_data type")
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 20161102162103.66480-1-cornelia.huck@de.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>