arm64: dts: qcom: sm8350: Add interconnects

Add interconnect nodes and add them for modem and cdsp nodes

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210401113252.3078466-1-vkoul@kernel.org


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