use static_assert to check on fw structure changes over updates (fix) (#5946)

Author: d-a-v

libraries/ESP8266WiFi/src/ESP8266WiFiSTA.cpp

@@ -64,7 +64,11 @@ static bool sta_config_equal(const station_config& lhs, const station_config& rh
  */
 static bool sta_config_equal(const station_config& lhs, const station_config& rhs) {
 
+#ifdef NONOSDK3V0
+    static_assert(sizeof(station_config) == 116, "struct station_config has changed, please update comparison function");
+#else
     static_assert(sizeof(station_config) == 112, "struct station_config has changed, please update comparison function");
+#endif
 
     if(strncmp(reinterpret_cast<const char*>(lhs.ssid), reinterpret_cast<const char*>(rhs.ssid), sizeof(lhs.ssid)) != 0) {
         return false;