interconnect: Add devm_of_icc_get() as exported API for users

Users can use devm version of of_icc_get() to benefit from automatic
resource release.

Signed-off-by: Akash Asthana <akashast@codeaurora.org>
Reviewed by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1586946198-13912-2-git-send-email-akashast@codeaurora.org


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