Add captioning preferences screen

BUG: 9926077
Change-Id: Iea141d5d6fd0e4f134c36c51d89830b3c31abd09
diff --git a/res/xml/accessibility_settings.xml b/res/xml/accessibility_settings.xml
index e2328d3..7b599b8 100644
--- a/res/xml/accessibility_settings.xml
+++ b/res/xml/accessibility_settings.xml
@@ -28,6 +28,11 @@
             android:title="@string/accessibility_system_title">
 
         <PreferenceScreen
+            android:fragment="com.android.settings.accessibility.ToggleCaptioningPreferenceFragment"
+            android:key="captioning_preference_screen"
+            android:title="@string/accessibility_captioning_title" />
+
+        <PreferenceScreen
             android:fragment="com.android.settings.accessibility.ToggleScreenMagnificationPreferenceFragment"
             android:key="screen_magnification_preference_screen"
             android:title="@string/accessibility_screen_magnification_title"/>