add class driver deinit

src/class/net/ecm_rndis_device.c

@@ -132,11 +132,14 @@ void netd_report(uint8_t *buf, uint16_t len)
 //--------------------------------------------------------------------+
 // USBD Driver API
 //--------------------------------------------------------------------+
-void netd_init(void)
-{
+void netd_init(void) {
   tu_memclr(&_netd_itf, sizeof(_netd_itf));
 }
 
+bool netd_deinit(void) {
+  return true;
+}
+
 void netd_reset(uint8_t rhport)
 {
   (void) rhport;