changes for new rocket-chip

src/main/scala/example/TestHarness.scala

@@ -13,7 +13,10 @@ class TestHarness(implicit val p: Parameters) extends Module {
   })
 
   val dut = p(BuildTop)(clock, reset.toBool, p)
+  dut.debug := DontCare
   dut.connectSimAXIMem()
+  dut.dontTouchPorts()
+  dut.tieOffInterrupts()
   io.success := dut.connectSimSerial()
 }