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

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

Change-Id: I862b6927165ddf012777a1e2842ccac578d27e4d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>