[automerger skipped] Migrate wifi tests out of NetworkAgent Messenger am: d17d2418eb am: a47639c79d am: 776815eec2 -s ours

am skip reason: Change-Id I35dd03dd9079b304cdc441083f56ea976a803acd with SHA-1 bd877df636 is in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Wifi/+/1540864

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iaa4cd04dc4d72bc475bfaa87767bbedc947864ca