Only show "hub mode" settings when the glanceable_hub_v2 flag is true.

Bug: 395320922
Test: atest CommunalPreferenceControllerTest
Flag: com.android.systemui.glanceable_hub_v2
Change-Id: I46e5931205a219806917fafcc1a7aac3b7046796
diff --git a/tests/robotests/Android.bp b/tests/robotests/Android.bp
index 464d970..bb70a70 100644
--- a/tests/robotests/Android.bp
+++ b/tests/robotests/Android.bp
@@ -77,6 +77,7 @@
         "platform-test-annotations",
         "testables",
         "android.app.flags-aconfig-java",
+        "com_android_systemui_flags_lib",
     ],
 
     libs: [