cg: rpc -- Fix typos for custom cgroup props engine

Seems @rpc-> part has been sneaked out (forgot to
push into index), as result it built fine locally,
but not when applied from the patch.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

lib/c/criu.c

@@ -731,17 +731,17 @@ int criu_local_add_cg_dump_controller(criu_opts *opts, char *name)
 	char **new;
 	size_t nr;
 
-	nr = opts->n_cgroup_dump_controller + 1;
-	new = realloc(opts->cgroup_dump_controller, nr * sizeof(char *));
+	nr = opts->rpc->n_cgroup_dump_controller + 1;
+	new = realloc(opts->rpc->cgroup_dump_controller, nr * sizeof(char *));
 	if (!new)
 		return -ENOMEM;
 
-	new[opts->n_cgroup_dump_controller] = strdup(name);
-	if (!new[opts->n_cgroup_dump_controller])
+	new[opts->rpc->n_cgroup_dump_controller] = strdup(name);
+	if (!new[opts->rpc->n_cgroup_dump_controller])
 		return -ENOMEM;
 
-	opts->n_cgroup_dump_controller = nr;
-	opts->cgroup_dump_controller = new;
+	opts->rpc->n_cgroup_dump_controller = nr;
+	opts->rpc->cgroup_dump_controller = new;
 
 	return 0;
 }