[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

src/com/android/settings/security/LockScreenPreferenceScreen.kt

@@ -17,8 +17,12 @@ package com.android.settings.security
 
 import android.content.Context
 import com.android.settings.R
+import com.android.settings.Settings.LockScreenSettingsActivity
+import com.android.settings.display.AmbientDisplayAlwaysOnPreference
 import com.android.settings.flags.Flags
 import com.android.settings.notification.LockScreenNotificationPreferenceController
+import com.android.settings.utils.makeLaunchIntent
+import com.android.settingslib.metadata.PreferenceMetadata
 import com.android.settingslib.metadata.PreferenceSummaryProvider
 import com.android.settingslib.metadata.ProvidePreferenceScreen
 import com.android.settingslib.metadata.preferenceHierarchy
@@ -44,9 +48,12 @@ open class LockScreenPreferenceScreen : PreferenceScreenCreator, PreferenceSumma
 
     override fun fragmentClass() = LockscreenDashboardFragment::class.java
 
+    override fun getLaunchIntent(context: Context, metadata: PreferenceMetadata?) =
+        makeLaunchIntent(context, LockScreenSettingsActivity::class.java, metadata?.key)
+
     override fun getPreferenceHierarchy(context: Context) =
         preferenceHierarchy(this) {
-            // add hierarchy here
+            +AmbientDisplayAlwaysOnPreference()
         }
 
     companion object {