Accessibility Settings Preview Fix

Modified the preview view in the Accessibility settings
to use the system webview since SWE did not support the preview
in its current state.

Change-Id: Id5027ad6865f32d725cbcc1973c9d9a634d3faf1
diff --git a/res/layout/webview_preview.xml b/res/layout/webview_preview.xml
index f0acf45..2137e9b 100644
--- a/res/layout/webview_preview.xml
+++ b/res/layout/webview_preview.xml
@@ -72,7 +72,7 @@
             android:gravity="center"
             android:orientation="vertical" />
 
-        <org.codeaurora.swe.WebView
+        <android.webkit.WebView
             android:id="@+id/webview"
             android:layout_width="match_parent"
             android:layout_height="180dp"