Merge "[Thread] support discovering NAT64 prefix from AIL" into main am: 5f9a3d042e am: b2289c4ee5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3273970

Change-Id: I35a7698107daabb7618290a69badcf2e4225b57c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>