Only show first 5 items in sound setting until click More.

Bug: 32255863
Test: RunSettingsRoboTests
Change-Id: Ib9449b70e2f2a003b3c6a810d0cc03016d025edb
diff --git a/src/com/android/settings/notification/SoundSettings.java b/src/com/android/settings/notification/SoundSettings.java
index b82931a..f156a84 100644
--- a/src/com/android/settings/notification/SoundSettings.java
+++ b/src/com/android/settings/notification/SoundSettings.java
@@ -63,6 +63,12 @@
     private RingtonePreference mRequestPreference;
 
     @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mProgressiveDisclosureMixin.setTileLimit(5);
+    }
+
+    @Override
     public int getMetricsCategory() {
         return MetricsEvent.SOUND;
     }