Add owners for core MessageQueueTest.java

Test: presubmit
Flag: None
Bug: None
Change-Id: I54d0bf7003f30407b812501518c1923b22a7d4c6
diff --git a/core/tests/coretests/src/android/os/OWNERS b/core/tests/coretests/src/android/os/OWNERS
index 4620cb8..c45080f 100644
--- a/core/tests/coretests/src/android/os/OWNERS
+++ b/core/tests/coretests/src/android/os/OWNERS
@@ -15,3 +15,6 @@
 
 # RemoteCallbackList
 per-file RemoteCallbackListTest.java = shayba@google.com
+
+# MessageQueue
+per-file MessageQueueTest.java = mfasheh@google.com, shayba@google.com