LilyGO T-ETH ELite (ESP32-S3+Ethernet POE) support (#611)

* LilyGO T-ETH ELite (ESP32-S3+Ethernet POE) support

* Update W5500Definitions.h

* Update README.md

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Co-authored-by: iranl <iranl@users.noreply.github.com>

src/util/NetworkUtil.cpp

@@ -46,6 +46,9 @@ NetworkDeviceType NetworkUtil::GetDeviceTypeFromPreference(int hardwareDetect, i
             return NetworkDeviceType::WiFi;
         }
         break;
+    case 12:
+        return NetworkDeviceType::LilyGO_T_ETH_ELite;
+        break;
     default:
         Log->println(("Unknown hardware selected, falling back to Wi-Fi."));
         return NetworkDeviceType::WiFi;