Merge "Add CTS for NetworkAgentConfig#setSubscriberId" into sc-dev am: 323a05334b am: 02619b4b1a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/14639705

Change-Id: I7de7d1f7ec2d70ac7a9105a29ff92ab163d55af7