Adding Audio HAL V5: Direction API

Bug: 119137468
Test: Testbed app.

Change-Id: I1b3c81079000958da80d36616fe06930d876aac3
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index e8b2158..0f1b7b2 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1541,6 +1541,9 @@
 
             status_t    getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
 
+            status_t    setMicrophoneDirection(audio_microphone_direction_t direction);
+            status_t    setMicrophoneFieldDimension(float zoom);
+
             void        updateMetadata_l() override;
 
             bool        fastTrackAvailable() const { return mFastTrackAvail; }