test.py: Add threads/scheduling dispatchwake and mutexhandoff

Both already pass.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

test.py

@@ -393,6 +393,8 @@ tests_good = [
   "threads/mutex/unlock2",
   "threads/scheduling/dispatch",
   "threads/scheduling/delayzero",
+  "threads/scheduling/dispatchwake",
+  "threads/scheduling/mutexhandoff",
   "threads/scheduling/readyqueue",
   "threads/scheduling/waittimeouts",
   "threads/semaphores/semaphores",