Add PSI sampling support to Traceur am: d8cea50ad1

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Traceur/+/2954462

Change-Id: I8e98c35384e740f8b4e76839460c803acf9cd656
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>