Merge "Log sub event type to latency logger." into tm-qpr-dev am: c5f43eb9 am: 1acb8780

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20296334



Change-Id: Ief1c24b7af455e0e1daba155f3cf8291e91bb564
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>