dp_catalog_panel_timing_cfg() takes 4 arguments, which are passed from
the calling function through members of struct dp_catalog.

No state is maintained other than across this call, so switch to
function arguments to clean up the code.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/585351/
Link: https://lore.kernel.org/r/20240328-msm-dp-cleanup-v2-5-a5aed9798d32@quicinc.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>