interconnect: qcom: msm8939: Use icc_sync_state

It's fashion to use the icc_sync_state callback to notify the framework
when all consumers are probed, so that the bandwidth request doesn't
need to stay on maximum value.

Do the same thing for msm8939 driver.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220416012634.479617-1-leo.yan@linaro.org


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