Merge "Add assert_utils for multidevice test" into main am: 68c8702570 am: 99897d85a5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3142576

Change-Id: I04f9e7c3a24c94c539f9128909ddf0f8c5629044
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>