x86/hwmon: pkgtemp has no dependency on PCI

Other than coretemp, from which this code was apparently derived, there
is no PCI specific code in this driver.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>