[Auto Pin Confirmation]: Add talkback capability for Auto-confirm correct PIN...

[Auto Pin Confirmation]: Add talkback capability for Auto-confirm correct PIN checkbox even if it is not in focus am: 01637b55 am: 90d3d346 am: d581a5d1 am: f18d6d4f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23601571



Change-Id: I44d8a3bad47956658340ac73d4b306b815ae3b3f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>