jsonrpc: Host_addNetwork

Newly modified API verb needs aligment with schema.


Change-Id: I4f75ab68ea638ca5c82d6117cadcbb867b08c5ed
Signed-off-by: pkliczewski <piotr.kliczewski@gmail.com>
Reviewed-on: http://gerrit.ovirt.org/36069
Reviewed-by: Dan Kenigsberg <danken@redhat.com>