Merge branches 'acpi-cppc', 'acpi-video', 'acpi-misc' and 'acpi-docs' into linux-next

* acpi-cppc:
  ACPI: CPPC: Fix some kernel-doc comments

* acpi-video:
  ACPI: video: Fix Lenovo Ideapad Z570 DMI match

* acpi-misc:
  ACPI: Silence missing prototype warnings

* acpi-docs:
  Documentation: firmware-guide/ACPI: correct spelling