Merge "simpleperf: Support monitoring different events on different cores" into main am: 63446d0911

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2799485

Change-Id: Iafb4c02653b1373be087d681abf1dae6f2b75068
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>