wifi: optimize espnow when disconnect pm enable

examples/wifi/espnow/main/espnow_example_main.c

@@ -297,7 +297,9 @@ static esp_err_t example_espnow_init(void)
     ESP_ERROR_CHECK( esp_now_init() );
     ESP_ERROR_CHECK( esp_now_register_send_cb(example_espnow_send_cb) );
     ESP_ERROR_CHECK( esp_now_register_recv_cb(example_espnow_recv_cb) );
-
+#if CONFIG_ESP_WIFI_STA_DISCONNECTED_PM_ENABLE
+    ESP_ERROR_CHECK( esp_now_set_wake_window(65535) );
+#endif
     /* Set primary master key. */
     ESP_ERROR_CHECK( esp_now_set_pmk((uint8_t *)CONFIG_ESPNOW_PMK) );