Add setMasterMono and getMasterMono

Bug: 15283594
Bug: 22700363
Change-Id: I5d0552938ec2a54be4450512974d92ff8c77b1e9
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 37af59f..695672e 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -205,6 +205,7 @@
     <protected-broadcast android:name="android.media.VOLUME_CHANGED_ACTION" />
     <protected-broadcast android:name="android.media.MASTER_VOLUME_CHANGED_ACTION" />
     <protected-broadcast android:name="android.media.MASTER_MUTE_CHANGED_ACTION" />
+    <protected-broadcast android:name="android.media.MASTER_MONO_CHANGED_ACTION" />
     <protected-broadcast android:name="android.media.SCO_AUDIO_STATE_CHANGED" />
     <protected-broadcast android:name="android.media.ACTION_SCO_AUDIO_STATE_UPDATED" />