drm/amd/display: fix DML not calculating delivery time

[why]
Calculating DCFCLK DS time requires calculating
delivery time for luma/chroma, but this value is
not calculated in DMLv2, it was inadvertently
removed when porting DMLv2

[how]
Add the calculation back

Signed-off-by: Jun Lei <[email protected]>
Reviewed-by: Dmytro Laktyushkin <[email protected]>
Acked-by: Bhawanpreet Lakha <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
1 file changed