Merge "simpleperf: Add doc for trying the latest builds" am: 4f8ae9fda2 am: 9d0e3559d8

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2426553

Change-Id: Ife0ddb7f27e231805dc1e742ecb192a4349925aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>