Merge "TestNetworkService: add missing return statement" am: a530228ecd

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2161641

Change-Id: I3a5eeff4603e9191758dc77fb99f95f1256b6caf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>