arm64: dts: qcom: sc7180: add interconnect bindings for display

This change adds the interconnect bindings to the
MDSS node. This will establish Display to DDR path
for bus bandwidth voting.

Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Link: https://lore.kernel.org/r/1594899334-19772-1-git-send-email-kalyan_t@codeaurora.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>