More power management and ACPI updates for v4.4-rc1

 - Support for the ACPI _CCA configuration object intended to tell
   the OS whether or not a bus master device supports hardware
   managed cache coherency and a new set of functions to allow
   drivers to check the cache coherency support for devices in a
   platform firmware interface agnostic way (Suravee Suthikulpanit,
   Jeremy Linton).

 - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
   (Aaron Lu, Hans de Goede).

 - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
   (Jon Medhurst, Nicolas Pitre).

 - kfree()-related fixup for the recently introduced CPPC cpufreq
   frontend (Markus Elfring).

 - intel_pstate fix reducing kernel log noise on systems where
   P-states are managed by hardware (Prarit Bhargava).

 - intel_pstate maintainers information update (Srinivas Pandruvada).

 - cpufreq core optimization related to the handling of delayed work
   items used by governors (Viresh Kumar).

 - Locking fixes and cleanups of the Operating Performance Points
   (OPP) framework (Viresh Kumar).

 - Generic power domains framework cleanups (Lina Iyer).

 - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan,
   Thomas Renninger).

 - turbostat tool updates (Len Brown).

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