Merge "[AA+ Search] Add logging for header search icon tapping events." into sc-v2-dev am: c919e67a9b am: e03310b8b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16223390

Change-Id: I86a58d5aed1c5dde8607f5a8305a72e3cb6f68f7