Since AVR32 arch was removed, at32ap-cpufreq is useless.
Remove this driver.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>