feat(esp8266): refactor ets timer process

components/esp8266/lib/VERSION

@@ -1,11 +1,11 @@
 gwen:
-    core:       9fa12cc
-    net80211:   aace315
-    pp:         8012b8d
-    wpa:        27927af
-    espnow:     27927af
-    wps:        27927af
-    wpa2:       27927af
+    core:       e1fe83a
+    net80211:   e1fe83a
+    pp:         e1fe83a
+    wpa:        e1fe83a
+    espnow:     e1fe83a
+    wps:        e1fe83a
+    wpa2:       e1fe83a
 
     smartconfig:  2.8.2
     phy:          1155.0

components/esp8266/source/esp_wifi_os_adapter.c

@@ -43,7 +43,7 @@ void __wifi_task_delete(void *task)
 
 void __wifi_task_yield_from_isr(void)
 {
-    portYIELD();
+    portYIELD_FROM_ISR();
 }
 
 void __wifi_task_delay(uint32_t tick)
@@ -124,6 +124,11 @@ int __wifi_queue_recv(void *queue, void *item, uint32_t block_time_tick)
     return ret == pdPASS ? true : false;
 }
 
+uint32_t __wifi_queue_msg_num(void *queue)
+{
+    return (uint32_t)uxQueueMessagesWaiting((const QueueHandle_t)queue);
+}
+
 void *__wifi_timer_create(const char *name, uint32_t period_ticks, bool auto_load, void *arg, void (*cb)(void *timer))
 {
     return xTimerCreate(name, period_ticks, auto_load, arg, (tmrTIMER_CALLBACK)cb);