arm64: dts: qcom: add data-lanes and link-freuencies into dp_out endpoint

Move data-lanes property from mdss_dp node to dp_out endpoint. Also
add link-frequencies property into dp_out endpoint as well. The last
frequency specified at link-frequencies will be the max link rate
supported by DP.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1672163103-31254-2-git-send-email-quic_khsieh@quicinc.com