[Why]
NV10/14 has released. Its time to get NV10/14 bounding box
directly from code.

[How]
Retrieve NV10/14 bounding box data directly from code.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>