ao/wasapi: request ao reload on thread_feed failures

Even with change notifications, there are still (rare) cases when the
feed thread gets AUDCLIENT_DEVICE_INVALIDATED. So handle failures in
thread_feed by requesting ao_reload.

audio/out/ao_wasapi.c

@@ -101,6 +101,8 @@ static void thread_feed(struct ao *ao)
 exit_label:
     MP_ERR(state, "Error feeding audio: %s (0x%"PRIx32")\n",
            wasapi_explain_err(hr), (uint32_t)hr);
+    MP_VERBOSE(ao, "Requesting ao reload\n");
+    ao_request_reload(ao);
     return;
 }