added dcd_sof_enable() stubs for all other ports

src/portable/synopsys/dwc2/dcd_dwc2.c

@@ -588,6 +588,13 @@ void dcd_disconnect(uint8_t rhport)
   dwc2->dctl |= DCTL_SDIS;
 }
 
+void dcd_sof_enable(uint8_t rhport, bool en)
+{
+  (void) rhport;
+  (void) en;
+
+  // TODO implement later
+}
 
 /*------------------------------------------------------------------*/
 /* DCD Endpoint port