ACPI and power management fixes for 3.9-rc2

- Two fixes for the new intel_pstate driver from Dirk Brandewie.

- Fix for incorrect usage of the .find_bridge() callback from struct
  acpi_bus_type in the USB core and subsequent removal of that
  callback from Rafael J. Wysocki.

- ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.

- ACPI initialization and error messages fix from Joe Perches.

- Operating Performance Points documentation improvement from
  Nishanth Menon.

- Fixes for memory leaks and potential concurrency issues and sysfs
  attributes leaks during device removal in the core device PM QoS
  code from Rafael J. Wysocki.

- Calxeda Highbank cpufreq driver simplification from Emilio López.

- cpufreq comment cleanup from Namhyung Kim.

- Fix for a section mismatch in Calxeda Highbank interprocessor
  communication code from Mark Langsdorf (this is not a PM fix
  strictly speaking, but the code in question went in through the
  PM tree).

/
Merge branch 'pm-fixes' into fixes

* pm-fixes:
  cpufreq / intel_pstate: Do not load on VM that does not report max P state.
  cpufreq / intel_pstate: Fix intel_pstate_init() error path
  PM / QoS: Remove device PM QoS sysfs attributes at the right place
  PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
  cpufreq: highbank: do not initialize array with a loop
  PM / OPP: improve introductory documentation
  cpufreq: Fix a typo in comment
  mailbox, pl320-ipc: remove __init from probe function