Merge "[OneSearch] Log events with timestamp into logcat for debugging." into sc-v2-dev am: 137dd35d26 am: 1816c9d1b2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15975400

Change-Id: I236ac5aa3539cd349a10822f9901d0e62116ac35