Enable complications on screensaver.

This changelist enables complications to display when the dream
overlay is enabled.

Test: manual - verified
Fixes: 378970356
Flag: EXEMPT configuration
Change-Id: Id91e6fde2b9547696aa312aff43e44bfa170b1ff

res/xml/screensaver_info.xml

@@ -15,4 +15,5 @@
   -->
 
  <dream xmlns:android="http://schemas.android.com/apk/res/android"
-    android:previewImage="@drawable/preview" />
+    android:previewImage="@drawable/preview"
+    android:showClockAndComplications="true" />