Temp work around for audio bugs

As a temporary work around for audio bugs this CL does the following:
  - request audio focus
  - set audio mode
  - disable speaker phone
  - unmute microphone

Bug: 13375268
Change-Id: Ibf3cda9e99463669d15804708f080b6c7efc5d5c
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 02f7efb..295e3dc 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -24,6 +24,8 @@
     <!-- TODO(gilad): Better understand/document this use case. -->
     <uses-permission android:name="android.permission.STOP_APP_SWITCHES" />
 
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"></uses-permission>
+
     <!-- Declare which SDK level this application was built against. This is needed so that IDEs
          can check for incompatible APIs. -->
     <uses-sdk android:minSdkVersion="19" />