monitor: Switch from timer_new() to timer_new_ns()

We don't actually care for the scale, so we can just as well use the
simpler interface.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <1444921716-9511-4-git-send-email-armbru@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

monitor.c

@@ -545,10 +545,9 @@ monitor_qapi_event_throttle(QAPIEvent event, int64_t rate)
     assert(rate * SCALE_MS <= INT64_MAX);
     evstate->rate = rate * SCALE_MS;
     evstate->qdict = NULL;
-    evstate->timer = timer_new(QEMU_CLOCK_REALTIME,
-                               SCALE_MS,
-                               monitor_qapi_event_handler,
-                               evstate);
+    evstate->timer = timer_new_ns(QEMU_CLOCK_REALTIME,
+                                  monitor_qapi_event_handler,
+                                  evstate);
 }
 
 static void monitor_qapi_event_init(void)