drm/msm/dpu: Support YUV formats on writeback for DPU 5.x+

Now that CDM_0 has been enabled for DPU 5.x+, add support for YUV formats
on writeback

Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/641270/


Signed-off-by: Rob Clark <robdclark@chromium.org>