there is no ACPI device object

processor_thermal_device driver needs ACPI support to work. Thus, the driver
probing should fail when there is no ACPI device object asscociated.

This fixes a NULL pointer dereference when the driver is loaded
with INT340X feature disabled in BIOS.
Reported-by: NChen Yu <yu.c.chen@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Tested-by: NChen Yu <yu.c.chen@intel.com>