drm/msm/dp: Add SDM845 DisplayPort instance

The Qualcomm SDM845 platform has a single DisplayPort controller, with
the same design as SC7180, so add support for this by reusing the SC7180
definition.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/514395/
Link: https://lore.kernel.org/r/20221207220012.16529-8-quic_bjorande@quicinc.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/dp/dp_display.c

@@ -178,6 +178,7 @@ static const struct of_device_id dp_dt_match[] = {
 	{ .compatible = "qcom,sc8180x-edp", .data = &sc8180x_dp_descs },
 	{ .compatible = "qcom,sc8280xp-dp", .data = &sc8280xp_dp_descs },
 	{ .compatible = "qcom,sc8280xp-edp", .data = &sc8280xp_edp_descs },
+	{ .compatible = "qcom,sdm845-dp", .data = &sc7180_dp_descs },
 	{ .compatible = "qcom,sm8350-dp", .data = &sm8350_dp_descs },
 	{}
 };