Merge branch 'bugfix/scan_stop_when_conenct' into 'master'

fix(esp_wifi): Fix locking in inccorrect state when stop_scan is called after connect

See merge request espressif/esp-idf!38779

Author: Jiang Jiang Jian

components/esp_wifi/include/esp_wifi.h

@@ -572,6 +572,7 @@ esp_err_t esp_wifi_get_scan_parameters(wifi_scan_default_params_t *config);
   *    - ESP_OK: succeed
   *    - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init
   *    - ESP_ERR_WIFI_NOT_STARTED: WiFi is not started by esp_wifi_start
+  *    - ESP_ERR_WIFI_STATE: WiFi is still connecting when esp_wifi_scan_stop() is invoked.
   */
 esp_err_t esp_wifi_scan_stop(void);