os: remove warning of esp_event.h

Author: redchenjs

main/src/core/os.c

@@ -9,8 +9,8 @@
 
 #include "esp_log.h"
 #include "esp_wifi.h"
+#include "esp_event.h"
 #include "esp_system.h"
-#include "esp_event_loop.h"
 #include "esp_smartconfig.h"
 
 #include "freertos/event_groups.h"