drm/msm/dpu: drop unused SSPP sub-block information

drm/msm/dpu: drop unused SSPP sub-block information

The driver doesn't support hsic/memcolor and pcc SSPP subblocks.
Drop corresponding definitions.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/534766/
Link: https://lore.kernel.org/r/20230429212512.2947245-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>