Merge "Looper: Add sysprop for verbose slow message logging" into main am:...

Merge "Looper: Add sysprop for verbose slow message logging" into main am: c5677bfc am: eab4a8b0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2973493



Change-Id: I7b812d12873fb3e69ed4f31fb9bdd6eb25782c38
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>