esp_wifi: fix typo in comments (ESP_ERR_WIFI_NOT_STARTED)

components/esp_wifi/include/esp_wifi.h

@@ -330,7 +330,7 @@ esp_err_t esp_wifi_restore(void);
   * @return 
   *    - ESP_OK: succeed
   *    - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init
-  *    - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
+  *    - ESP_ERR_WIFI_NOT_STARTED: WiFi is not started by esp_wifi_start
   *    - ESP_ERR_WIFI_CONN: WiFi internal error, station or soft-AP control block wrong
   *    - ESP_ERR_WIFI_SSID: SSID of AP which station connects is invalid
   */