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

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

Change-Id: I5dbb09b155ad2b1d7aad0de0d25d71be104c1a48