Revert "Revert "Test IPv6ProvisioningLossParcelable in the NetworkAttributes""" am: 42c643a2e5 am: 1145cdcefe

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1460264

Change-Id: Ie6b10f73ac6508b83e240e74a215edbe58901be3