ACPI / processor: use ACPI_COMPANION() to get ACPI device
ACPI / processor: use ACPI_COMPANION() to get ACPI device

Use ACPI_COMPANION() to get an ACPI device instead of
acpi_bus_get_device() in the processor driver.

Signed-off-by: Lan Tianyu <4221d0916eb5c472a0ab46f0107445bbb3e8a589@intel.com>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <27ffc44a8ec6a212fba98cfc3246c6ce8ab131e0@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs