Camera: update camera audio restriction API

Add dedicated get API for API review feedback.

Test: updated CTS pass
Bug: 140524714
Change-Id: I0559e24d6d9f4a2d9db6c0b6035eaf49bd41d950
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index a9aa190..fe25010 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -152,9 +152,9 @@
     virtual binder::Status finalizeOutputConfigurations(int32_t streamId,
             const hardware::camera2::params::OutputConfiguration &outputConfiguration) override;
 
-    virtual binder::Status setCameraAudioRestriction(int32_t mode,
-            /*out*/
-            int32_t* outMode = NULL) override;
+    virtual binder::Status setCameraAudioRestriction(int32_t mode) override;
+
+    virtual binder::Status getGlobalAudioRestriction(/*out*/int32_t* outMode) override;
 
     /**
      * Interface used by CameraService