vdsm: Missing hostId parameter on reconstructMaster verb

Json schema was not consistent with API.py for StoragePool class and
reconstructMaster method. There was missing hostId parameter.

Please note that there is parameter ordering difference for coresponding
xmlrpc poolReconstructMaster method.

Change-Id: I807830c2eac3cd9b43d83f646a4f0ad9b83a4659
Signed-off-by: pkliczewski <piotr.kliczewski@gmail.com>
Bug-Url: https://bugzilla.redhat.com/1115466
Reviewed-on: http://gerrit.ovirt.org/29861
Reviewed-by: Oved Ourfali <oourfali@redhat.com>
Reviewed-by: Allon Mureinik <amureini@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>