Update Test924 to filter for messages related to test thread am: 1989aa4b39 am: 1aea47b3ab

Original change: https://android-review.googlesource.com/c/platform/art/+/2257701

Change-Id: I66e749aa9c2190629a05e9ee4a68e6339fb132b4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>