Add page Settings->Security & lock screen->Lock screen preferences.

- add the new preference screen that contains configuration for lock
screen notification, add user when locked, and owner info.
- refactor SecuritySettings to use the new owner info controller.

Fix: 36163515
Test: make RunSettingsRoboTests

Change-Id: I3bada8f652f89ed0af7aebc03f0bf2f637296b4d
diff --git a/res/xml/security_settings_pattern.xml b/res/xml/security_settings_pattern.xml
index ad57e82..295e896 100644
--- a/res/xml/security_settings_pattern.xml
+++ b/res/xml/security_settings_pattern.xml
@@ -28,6 +28,11 @@
             android:summary="@string/unlock_set_unlock_mode_pattern"
             settings:keywords="@string/keywords_lockscreen" />
 
+        <Preference android:key="lockscreen_preferences"
+            android:title="@string/lockscreen_settings_title"
+            android:summary="@string/lockscreen_settings_summary"
+            android:fragment="com.android.settings.security.LockscreenDashboardFragment"/>
+
     </PreferenceCategory>
 
 </PreferenceScreen>