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: Id3e51c9d194c0cf602e45804dc4a30e697d86f6f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>