Merge "[Thread] Add support for Thread persistent setting" into main am: 396cc5721e am: 3aae8fa22a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2894700

Change-Id: I39b2669ec850e85c2514192f1947b35c2c67fa02
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>