drm/msm/dpu: enable compression bit in cfg2 for DSC

drm/msm/dpu: enable compression bit in cfg2 for DSC

Enable compression bit in cfg2 register for DSC in the DSI case
per hardware version.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/596231/
Link: https://lore.kernel.org/r/20240530-msm-drm-dsc-dsi-video-upstream-4-v6-3-2ab1d334c657@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>