Add API to allow uncore frequency adjustment.
Uncore is a term used by Intel to describe function
of a microprocessor that are closely connected
to the core to achieve high performance.
This is done through manipulating related uncore frequency control
sysfs entries to adjust the minimum and maximum uncore frequency values
and works on Linux for Intel hardware.
Signed-off-by: Tadhg Kearney <tadhg.kearney@intel.com>
Reviewed-by: David Hunt <david.hunt@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>