Merge branch 'bugfix/drop_beacon_when_authmode_changed' into 'master'

fix(lib): drop beacon when authmode changed

See merge request sdk/ESP8266_RTOS_SDK!1463

Author: donghengqaz

components/esp8266/lib/VERSION

@@ -1,10 +1,10 @@
 gwen:
-    core:       f459e31
-    net80211:   c184e50
-    pp:         1ce698f
-    espnow:     f459e31
-    wps:        f459e31
-    wpa2:       f459e31
+    core:       01c569d
+    net80211:   01c569d
+    pp:         01c569d
+    espnow:     01c569d
+    wps:        01c569d
+    wpa2:       01c569d
 
     smartconfig:  2.8.2
     phy:          1163.0

components/esp8266/lib/libcore.a

@@ -86,6 +86,15 @@ void wifi_init_sta(void)
             .password = EXAMPLE_ESP_WIFI_PASS
         },
     };
+
+    /* Setting a password implies station will connect to all security modes including WEP/WPA.
+        * However these modes are deprecated and not advisable to be used. Incase your Access point
+        * doesn't support WPA2, these mode can be enabled by commenting below line */
+
+    if (strlen((char *)wifi_config.sta.password)) {
+        wifi_config.sta.threshold.authmode = WIFI_AUTH_WPA2_PSK;
+    }
+
     ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
     ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
     ESP_ERROR_CHECK(esp_wifi_start() );