drm/amdgpu/vcn:Replace value with defined macro

Replace value with defined macro to make
code more readable

Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 files changed