ACPI / CPPC: Add support for guaranteed performance

mainline inclusion
from mainline-v4.20-rc1
commit 29523f09
category: feature
bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=44


CVE: NA

-----------------------------------------------

Upstream commit 29523f09 upstream

The Continuous Performance Control package may contain an optional
guaranteed performance field.

Add support to read guaranteed performance from _CPC.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Backported-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>