Merge "Add test for default network activity APIs" am: 0d56157186

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2573990

Change-Id: I3ccaf5568db69eea1555dbafd32ea984447b0fa1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>