interconnect: qcom: sc8180x: constify pointer to qcom_icc_node

Pointers to struct qcom_icc_node are const.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221027154848.293523-3-krzysztof.kozlowski@linaro.org


Signed-off-by: Georgi Djakov <djakov@kernel.org>