drm_hwcomposer: Add support for GetColorModes & SetCursorPosition

For now we just return HAL_COLOR_MODE_NATIVE and store cursor
position.

BUG=None.
TEST=None.

Change-Id: Id6a7e157dbd9fc41fc53c0e33a6eb523632b9b7a
Signed-off-by: Kalyan Kondapally <kalyan.kondapally@intel.com>
diff --git a/drmhwctwo.h b/drmhwctwo.h
index 038412d..0490e2a 100644
--- a/drmhwctwo.h
+++ b/drmhwctwo.h
@@ -118,6 +118,8 @@
     hwc_rect_t display_frame_;
     float alpha_ = 1.0f;
     hwc_frect_t source_crop_;
+    int32_t cursor_x_;
+    int32_t cursor_y_;
     HWC2::Transform transform_ = HWC2::Transform::None;
     uint32_t z_order_ = 0;
     android_dataspace_t dataspace_ = HAL_DATASPACE_UNKNOWN;
@@ -205,6 +207,7 @@
     HwcLayer client_layer_;
     UniqueFd retire_fence_;
     UniqueFd next_retire_fence_;
+    int32_t color_mode_;
 
     uint32_t frame_no_ = 0;
   };