Make trace smaller in CtsPerfettoReporterTestCases am: a912d1efd9

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/perfetto/+/23474556

Change-Id: I184181be8f3d41c642748938fb8ef439af013945
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>