cpupower: Add support for new AMD family 0x17

Add support for new AMD family 0x17
- Add bit field changes to the msr_pstate structure
- Add the new formula for the  calculation of cof
- Changed method to access to CpbDis

Signed-off-by: Sherry Hurwitz <sherry.hurwitz@amd.com>
Acked-by: Thomas Renninger <trenn@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>