arm64: dts: qcom: sc7180: Add opp-peak-kBps to GPU opp

Add opp-peak-kBps bindings to the GPU opp table, listing the peak
GPU -> DDR bandwidth requirement for each opp level. This will be
used to scale the DDR bandwidth along with the GPU frequency dynamically.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/1594992579-20662-7-git-send-email-akhilpo@codeaurora.org


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