arm64: dts: qcom: qcs8300: add display dt nodes for MDSS, DPU, DisplayPort and eDP PHY

arm64: dts: qcom: qcs8300: add display dt nodes for MDSS, DPU, DisplayPort and eDP PHY

Add devicetree changes to enable MDSS display-subsystem,
display-controller(DPU), DisplayPort controller and eDP PHY for
Qualcomm QCS8300 platform.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251117-dts_qcs8300-v7-1-bf42d39e7828@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>