[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: 812ca56c

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



Change-Id: I19b29b1a66e7824ee0635630b767667958aebe68
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>