Fix CtsVerifier Audio Frequency Line test layout for small round screens

Bug: 24301108
Change-Id: Iefcb2e61f2f5017722bd69cabb2ef59a4da9c904
diff --git a/apps/CtsVerifier/res/layout/audio_frequency_line_activity.xml b/apps/CtsVerifier/res/layout/audio_frequency_line_activity.xml
index 69e3bc7..96c83b2 100644
--- a/apps/CtsVerifier/res/layout/audio_frequency_line_activity.xml
+++ b/apps/CtsVerifier/res/layout/audio_frequency_line_activity.xml
@@ -18,6 +18,15 @@
         android:layout_height="wrap_content"
         android:padding="10dip"
         android:orientation="vertical">
+<ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:id="@+id/scrollView">
+
+  <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="vertical">
 
   <TextView
       android:layout_width="match_parent"
@@ -68,5 +77,7 @@
     </LinearLayout>
 
   <include layout="@layout/pass_fail_buttons" />
+      </LinearLayout>
+   </ScrollView>
 
 </LinearLayout>
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