Align RoCCIO with new cloneType (#1270)

- Aligns RoCC with #1232.
- Fixes #1268.

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

src/main/scala/tile/LazyRoCC.scala

@@ -52,8 +52,6 @@ class RoCCCoreIO(implicit p: Parameters) extends CoreBundle()(p) {
   val busy = Bool(OUTPUT)
   val interrupt = Bool(OUTPUT)
   val exception = Bool(INPUT)
-
-  override def cloneType = new RoCCCoreIO()(p).asInstanceOf[this.type]
 }
 
 /** Base classes for Diplomatic TL2 RoCC units **/
@@ -64,7 +62,7 @@ abstract class LazyRoCC(implicit p: Parameters) extends LazyModule {
   val tlNode: TLNode = TLIdentityNode()
 }
 
-class RoCCIO(outer: LazyRoCC)(implicit p: Parameters) extends RoCCCoreIO()(p) {
+class RoCCIO(val outer: LazyRoCC)(implicit p: Parameters) extends RoCCCoreIO()(p) {
   // Should be handled differently, eventually
   val ptw = Vec(p(RoccNPTWPorts), new TLBPTWIO)
   val fpu_req = Decoupled(new FPInput)