Merge "Validate all INTERNET-providing VCN-managed networks" am: b56816d57b am: fdc1ee1f77 am: 55c2b3aaa7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1705647

Change-Id: I256d267e9b5b629df98a53b377398f4882397977