added hcd_edpt_close() stub for other ports

src/portable/synopsys/dwc2/hcd_dwc2.c

@@ -506,6 +506,11 @@ bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, const tusb_desc_endpoint_t*
   return true;
 }
 
+bool hcd_edpt_close(uint8_t rhport, uint8_t daddr, uint8_t ep_addr) {
+  (void) rhport; (void) daddr; (void) ep_addr;
+  return false; // TODO not implemented yet
+}
+
 // clean up channel after part of transfer is done but the whole urb is not complete
 static void channel_xfer_out_wrapup(dwc2_regs_t* dwc2, uint8_t ch_id) {
   hcd_xfer_t* xfer = &_hcd_data.xfer[ch_id];