More power management updates for v4.16-rc1

 - Drop the at32ap-cpufreq driver which is useless after the
   removal of the corresponding arch (Corentin LABBE).

 - Fix a regression from the 4.14 cycle in the APM idle driver by
   making it initialize the polling state properly (Rafael Wysocki).

 - Fix a crash on failing system suspend due to a missing check in
   the cpufreq core (Bo Yan).

 - Make the intel_pstate driver initialize the hardware-managed
   P-state control (HWP) feature on CPU0 upon resume from system
   suspend if HWP had been enabled before the system was suspended
   (Chen Yu).

 - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla,
   Wei Yongjun).

 - Avoid pointer subtractions during frequency table walks in cpufreq
   (Dominik Brodowski).

 - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver
   for AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX
   (Akshu Agrawal, Nicolas Chauvet).

 - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann).

 - Fix up the parsing of power domains DT data (Ulf Hansson).
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