split coreplex off into separate package

coreplex/src/main/scala/UnitTest.scala

@@ -0,0 +1,20 @@
+package coreplex
+
+import Chisel._
+import junctions.unittests.UnitTestSuite
+import rocket.Tile
+import uncore.tilelink.TLId
+import cde.Parameters
+
+class UnitTestCoreplex(topParams: Parameters) extends Coreplex()(topParams) {
+  require(!exportMMIO)
+  require(!exportBus)
+  require(nMemChannels == 0)
+
+  io.debug.req.ready := Bool(false)
+  io.debug.resp.valid := Bool(false)
+
+  val l1params = p.alterPartial({ case TLId => "L1toL2" })
+  val tests = Module(new UnitTestSuite()(l1params))
+  when (tests.io.finished) { stop() }
+}