[core] Fix lwip_ioctl variable size

README.md

@@ -155,10 +155,10 @@ SPI                 | ❌
 Wire                | ❌
 **OTHER LIBRARIES** |
 Wi-Fi Station       | ✔️
-Wi-Fi Access Point  | ❌
+Wi-Fi Access Point  | ✔️
 Wi-Fi Events        | ❌
 Wi-Fi Client (SSL)  | ✔️ (❌)
-Wi-Fi Server        | ❌
+Wi-Fi Server        | ✔️
 SPIFFS              | ❌
 BLE                 | -
 HTTP                | ❌

arduino/libretuya/api/LwIPRxBuffer.cpp

@@ -18,7 +18,7 @@ size_t LwIPRxBuffer::r_available() {
 	if (_sock < 0) {
 		return 0;
 	}
-	int count;
+	uint16_t count = 0;
 	int res = lwip_ioctl(_sock, FIONREAD, &count);
 	if (res < 0) {
 		_failed = true;