Make sure the default event queue is initialized.

In IDF the event queue is initialized by the controller code.
We arent using that here since Arduino uses bluedroid and therefore is not initializing the queue.

src/nimble/porting/nimble/src/nimble_port.c

@@ -117,16 +117,23 @@ esp_err_t esp_nimble_init(void)
     ble_transport_init();
 #if MYNEWT_VAL(BLE_QUEUE_CONG_CHECK)
     ble_adv_list_init();
-#endif
-#endif
+#endif // MYNEWT_VAL(BLE_QUEUE_CONG_CHECK)
+#endif // CONFIG_BT_CONTROLLER_ENABLED
+#endif // !SOC_ESP_NIMBLE_CONTROLLER || !CONFIG_BT_CONTROLLER_ENABLED
 
     /* Initialize default event queue */
+    /* Included for Arduino since the default event queue is not initialized
+    * in the Arduino core when bludroid is used.
+    */
     ble_npl_eventq_init(&g_eventq_dflt);
+
+#if !SOC_ESP_NIMBLE_CONTROLLER || !CONFIG_BT_CONTROLLER_ENABLED
     /* Initialize the global memory pool */
     os_mempool_module_init();
     os_msys_init_();
 
-#endif
+#endif // !SOC_ESP_NIMBLE_CONTROLLER || !CONFIG_BT_CONTROLLER_ENABLED
+
     /* Initialize the host */
     ble_transport_hs_init();
 #if CONFIG_BT_CONTROLLER_DISABLED && CONFIG_BT_NIMBLE_TRANSPORT_UART