arm64: dts: qcom: sc7180: Add interconnects property for GPU

This patch adds the interconnects property to the GPU node. This enables
the GPU->DDR path bandwidth voting.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/1594992579-20662-6-git-send-email-akhilpo@codeaurora.org


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