Merge "Add apf_utils for multi-device tests" into main am: 6acc14e048 am: ec6e1e0e2a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3133437

Change-Id: I8c18a1a0a896956a51c8024fffc0e517778c57db
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>