[automerger skipped] Add a local dynamic config for ConnectivityManagerTest to decouple the test config from test logic. am: d23d77f63a -s ours

am skip reason: Merged-In I105650c4c9cb93e7da8cbe9aa68baa04d750a691 with SHA-1 f4c16355dc is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3142577

Change-Id: Icbbd0c2d2a138c20af23fb3d40b09a71979f2555
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>