Add Nanos6 breakdown test for runtime

test/rt/nanos6/CMakeLists.txt

@@ -59,6 +59,6 @@ nanos6_rt_test(simple-task.c NAME simple-task-level-2 LEVEL 2)
 nanos6_rt_test(simple-task.c NAME simple-task-level-3 LEVEL 3)
 
 # Same but with breakdown enabled
-nanos6_rt_test(simple-task.c NAME simple-task-level-1 LEVEL 1 BREAKDOWN)
-nanos6_rt_test(simple-task.c NAME simple-task-level-2 LEVEL 2 BREAKDOWN)
-nanos6_rt_test(simple-task.c NAME simple-task-level-3 LEVEL 3 BREAKDOWN)
+nanos6_rt_test(simple-task.c NAME simple-task-breakdown-level-1 LEVEL 1 BREAKDOWN)
+nanos6_rt_test(simple-task.c NAME simple-task-breakdown-level-2 LEVEL 2 BREAKDOWN)
+nanos6_rt_test(simple-task.c NAME simple-task-breakdown-level-3 LEVEL 3 BREAKDOWN)