[AA+] Fixes wrong container for LAUNCHER_ITEM_DROP_COMPLETED log event. am: 73821a9c6d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13501152

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0dbe95908b2034fb3501d9001f8c15c6b19d9633