A left over akka -> akka.tcp changes

core/src/main/scala/org/apache/spark/scheduler/cluster/SimrSchedulerBackend.scala

@@ -36,7 +36,7 @@ private[spark] class SimrSchedulerBackend(
   override def start() {
     super.start()
 
-    val driverUrl = "akka://spark@%s:%s/user/%s".format(
+    val driverUrl = "akka.tcp://spark@%s:%s/user/%s".format(
       System.getProperty("spark.driver.host"), System.getProperty("spark.driver.port"),
       CoarseGrainedSchedulerBackend.ACTOR_NAME)
 

yarn/src/main/scala/org/apache/spark/deploy/yarn/WorkerLauncher.scala

@@ -168,7 +168,7 @@ class WorkerLauncher(args: ApplicationMasterArguments, conf: Configuration) exte
     System.setProperty("spark.driver.host", driverHost)
     System.setProperty("spark.driver.port", driverPort.toString)
 
-    val driverUrl = "akka://spark@%s:%s/user/%s".format(
+    val driverUrl = "akka.tcp://spark@%s:%s/user/%s".format(
       driverHost, driverPort.toString, CoarseGrainedSchedulerBackend.ACTOR_NAME)
 
     actor = actorSystem.actorOf(Props(new MonitorActor(driverUrl)), name = "YarnAM")