arm64: dts: qcom: Add interconnect nodes for SDX75

arm64: dts: qcom: Add interconnect nodes for SDX75

Add interconnect nodes to support interconnects on SDX75.
Also parallely add the interconnect property for UART required
so that the bootup to shell does not break with interconnects
in place.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20231117080737.606687-2-quic_rohiagar@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>