AwesomePlayer: correct stream type for offload

canOffloadStream() function in stagefright utils forces the
stream type to AUDIO_STREAM_MUSIC when querying the audio policy
manager if a particular track is offloadable or not.
This causes MP3 ringtones to be offloaded which is not a validated use case.

The fix consists in using the actual stream type read from the AudioSink.

Bug: 11410937.
Change-Id: I44b8e033a8e785a79cdc291b142f80b5580bdc4d
diff --git a/libvideoeditor/lvpp/VideoEditorPlayer.h b/libvideoeditor/lvpp/VideoEditorPlayer.h
index ab6d731..5862c08 100755
--- a/libvideoeditor/lvpp/VideoEditorPlayer.h
+++ b/libvideoeditor/lvpp/VideoEditorPlayer.h
@@ -62,6 +62,7 @@
         virtual void            pause();
         virtual void            close();
         void setAudioStreamType(audio_stream_type_t streamType) { mStreamType = streamType; }
+        virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; }
                 void            setVolume(float left, float right);
         virtual status_t        dump(int fd,const Vector<String16>& args) const;