drm/amd/display: Fix VBA chroma calculation for pipe splitting

[Why]
DML failures occur for 420 modes with dynamic pipe
splitting enabled because the ChromaViewport exceeds
the ChromaSurfaceWidth.

This is caused by adding the viewport_width instead
of the viewport_width_c.

This similarly occurs for rotated modes due to the
use of viewport_height instead of viewport_height_c.

[How]
Correct the calculations.

Signed-off-by: Nicholas Kazlauskas <[email protected]>
Reviewed-by: Dmytro Laktyushkin <[email protected]>
Acked-by: Qingqing Zhuo <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions