display: Support for S3D video

1. Add support to set HDMI to 3D mode
2. Add binder API to force 3D mode
3. Switch to 3D mode based on metadata
4. Configure pipes appropriately
5. Only side-by-side and top-bottom formats are currently supported

Change-Id: Iae579ecfa45aae088ff543d4143e5025e8c682fa
diff --git a/libqservice/IQService.h b/libqservice/IQService.h
index cd2d116..796e506 100644
--- a/libqservice/IQService.h
+++ b/libqservice/IQService.h
@@ -60,6 +60,7 @@
         SET_PARTIAL_UPDATE = 19,   // Preference on partial update feature
         TOGGLE_SCREEN_UPDATE = 20, // Provides ability to disable screen updates
         SET_FRAME_DUMP_CONFIG = 21,  // Provides ability to set the frame dump config
+        SET_S3D_MODE = 22, // Set the 3D mode as specified in msm_hdmi_modes.h
         COMMAND_LIST_END = 400,
     };