camera: add more htc parameters

Google Edition

Change-Id: I67968ea749dec0bf3810110f99bccdd3edee3428
diff --git a/include/camera/CameraParameters.h b/include/camera/CameraParameters.h
index 7b583c8..477f8ce 100644
--- a/include/camera/CameraParameters.h
+++ b/include/camera/CameraParameters.h
@@ -679,6 +679,7 @@
     static const char KEY_GPU_EFFECT_PARAM_1[];
     static const char KEY_GPU_EFFECT_PARAM_2[];
     static const char KEY_GPU_EFFECT_PARAM_3[];
+    static const char KEY_FORCE_USE_AUDIO_ENABLED[];
 #endif
 
     static const char KEY_AE_BRACKET_HDR[];