Merge branches 'acpi-cleanup', 'acpi-thermal', 'acpi-video' and 'acpi-dock'

* acpi-cleanup:
  ACPI: Clean up memory allocations

* acpi-thermal:
  ACPI / thermal: Fix wrong variable usage in debug statement

* acpi-video:
  ACPI / video: Favor native backlight interface for ThinkPad Helix

* acpi-dock:
  ACPI / dock: Drop dock_device_ids[] table