Fix overlapping problem in display size screen.

All screen in Settings set clipToPadding to false by default,
so we see this side effect on display size screen.

To fix it, we set clipToPadding and clipChidren to true.

Fixes: 132905691
Test: visual
Change-Id: I58752c0ba7bd033cde97ff6047513a50ab933ae9

res/layout-sw300dp-land/screen_zoom_activity.xml

@@ -17,6 +17,8 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            android:clipToPadding="true"
+            android:clipChildren ="true"
             android:orientation="horizontal">
 
     <LinearLayout