[Catalyst] Migrate AmbientDisplayAlwaysOnPreferenceController

As the preference is exported as external settings, for safety, do not
update the preference key with datastore key. As a workaround, manage a
mapping between preference hierarchy key and datastore key.

Bug: 372307567
Flag: com.android.settings.flags.catalyst_lockscreen_from_display_settings
Test: devtool
Change-Id: I56126485061859b41216cd23b8e1caf63823a1ec

tests/robotests/src/com/android/settings/security/LockscreenDashboardFragmentTest.java

@@ -23,6 +23,7 @@ import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
@@ -88,7 +89,11 @@ public class LockscreenDashboardFragmentTest {
                 AmbientDisplayAlwaysOnPreferenceController.class);
 
         mTestFragment.onAttach(mContext);
-        verify(controller).setConfig(any());
+        if (mTestFragment.isCatalystEnabled()) {
+            verifyNoInteractions(controller);
+        } else {
+            verify(controller).setConfig(any());
+        }
     }
 
     @Test