[Auto Pin Confirmation]: Add talkback capability for Auto-confirm correct PIN checkbox even if it is not in focus

- set accessibilityLiveRegion as Polite mode to allow talkback to announce the state of checkbox even if is not in focus

Bug: 281950677
Test: Manual test by flashing on device and checking in talkback mode
Change-Id: Ia1066e2df1f40e6c339a4cd63f92acf0858f8f3d
diff --git a/src/com/android/settings/password/ChooseLockPassword.java b/src/com/android/settings/password/ChooseLockPassword.java
index 2a30b42..16c4f5b 100644
--- a/src/com/android/settings/password/ChooseLockPassword.java
+++ b/src/com/android/settings/password/ChooseLockPassword.java
@@ -25,6 +25,7 @@
 import static android.app.admin.DevicePolicyResources.Strings.Settings.SET_WORK_PROFILE_PASSWORD_HEADER;
 import static android.app.admin.DevicePolicyResources.Strings.Settings.SET_WORK_PROFILE_PIN_HEADER;
 import static android.app.admin.DevicePolicyResources.UNDEFINED;
+import static android.view.View.ACCESSIBILITY_LIVE_REGION_POLITE;
 
 import static com.android.internal.widget.LockPatternUtils.CREDENTIAL_TYPE_NONE;
 import static com.android.internal.widget.PasswordValidationError.CONTAINS_INVALID_CHARACTERS;
@@ -531,6 +532,7 @@
             mIsAutoPinConfirmOptionSetManually = false;
             setOnAutoConfirmOptionClickListener();
             if (mAutoPinConfirmOption != null) {
+                mAutoPinConfirmOption.setAccessibilityLiveRegion(ACCESSIBILITY_LIVE_REGION_POLITE);
                 mAutoPinConfirmOption.setVisibility(View.GONE);
                 mAutoPinConfirmOption.setChecked(false);
             }