More ACPI and power management fixes and updates for 3.15-rc1

 - Fix for a recently introduced CPU hotplug regression in ARM KVM
   from Ming Lei.

 - Fixes for breakage in the at32ap, loongson2_cpufreq, and unicore32
   cpufreq drivers introduced during the 3.14 cycle (-stable material)
   from Chen Gang and Viresh Kumar.

 - New powernv cpufreq driver from Vaidyanathan Srinivasan, with bits
   from Gautham R Shenoy and Srivatsa S Bhat.

 - Exynos cpufreq driver fix preventing it from being included into
   multiplatform builds that aren't supported by it from Sachin Kamat.

 - cpufreq cleanups related to the usage of the driver_data field in
   struct cpufreq_frequency_table from Viresh Kumar.

 - cpufreq ppc driver cleanup from Sachin Kamat.

 - Intel BayTrail support for intel_idle and ACPI idle from Len Brown.

 - Intel CPU model 54 (Atom N2000 series) support for intel_idle from
   Jan Kiszka.

 - intel_idle fix for Intel Ivy Town residency targets from Len Brown.

 - turbostat updates (Intel Broadwell support and output cleanups)
   from Len Brown.

 - New cpuidle sysfs attribute for exporting C-states' target residency
   information to user space from Daniel Lezcano.

 - New kernel command line argument to prevent power domains enabled
   by the bootloader from being turned off even if they are not in use
   (for diagnostics purposes) from Tushar Behera.

 - Fixes for wakeup sysfs attributes documentation from Geert Uytterhoeven.

 - New ACPI video blacklist entry for ThinkPad Helix from Stephen Chandler
   Paul.

 - Assorted ACPI cleanups and a Kconfig help update from Jonghwan Choi,
   Zhihui Zhang, Hanjun Guo.

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