Rename _of_get_opp_desc_node to dev_pm_opp_of_get_opp_desc_node and add it
to include/linux/pm_opp.h to allow other drivers, such as platform OPP
and cpufreq drivers, to make use of it.
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>