Describe the interconnect paths related to QUPs and add the power-domains
powering them.

This is required for icc sync_state, as otherwise QUP access is gated.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230703-topic-8250_qup_icc-v2-4-9ba0a9460be2@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>