[automerger skipped] Merge "Support learning the NAT64 prefix from two...
[automerger skipped] Merge "Support learning the NAT64 prefix from two different sources." into rvc-dev am: 4f7f6d67 am: f349dec0 -s ours
am skip reason: Change-Id Ic7452431d2d9aea1ae59b67a9d8383c6cc5b3902 with SHA-1 1cb345e7 is in history
Change-Id: Ic8af70ae1a29cda5cc6ef33f885db3532037de81