interconnect: qcom: sc8280xp: constify qcom_icc_desc

struct qcom_icc_desc is not modified so it can be made const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220427131154.302581-1-krzysztof.kozlowski@linaro.org


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