monitor: convert do_migrate_set_speed() to QObject

Signed-off-by: Markus Armbruster <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>
diff --git a/qemu-monitor.hx b/qemu-monitor.hx
index b30301e..6d47d49 100644
--- a/qemu-monitor.hx
+++ b/qemu-monitor.hx
@@ -764,7 +764,8 @@
         .args_type  = "value:b",
         .params     = "value",
         .help       = "set maximum speed (in bytes) for migrations",
-        .mhandler.cmd = do_migrate_set_speed,
+        .user_print = monitor_user_noop,
+        .mhandler.cmd_new = do_migrate_set_speed,
     },
 
 STEXI