Add MODIFY_AUDIO_ROUTING permission

Change-Id: I1584a4b2c88b3abe5e7b753f12fac21398fa193c
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 25371f9..d59951b 100755
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -45,6 +45,7 @@
     <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
     <uses-permission android:name="com.android.gallery3d.permission.GALLERY_PROVIDER" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_ROUTING" />
     <!-- add for guest to set system property -->
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />