Adding Audio HAL V5: Direction API

Bug: 119137468
Test: Testbed app.

Change-Id: I1b3c81079000958da80d36616fe06930d876aac3
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 6c698f6..4c0a5bc 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -579,6 +579,10 @@
         virtual binder::Status   stop();
         virtual binder::Status   getActiveMicrophones(
                 std::vector<media::MicrophoneInfo>* activeMicrophones);
+        virtual binder::Status   setMicrophoneDirection(
+                int /*audio_microphone_direction_t*/ direction);
+        virtual binder::Status   setMicrophoneFieldDimension(float zoom);
+
     private:
         const sp<RecordThread::RecordTrack> mRecordTrack;