[S] Change in coreboot[main]: arch/x86/cpu_common: Add cpu_get_c_substate_support

[Patrick Rudolph (Code Review)]

Attention is currently required from: Patrick Rudolph.

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/78224?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: arch/x86/cpu_common: Add cpu_get_c_substate_support
......................................................................

arch/x86/cpu_common: Add cpu_get_c_substate_support

Add a function to get the number of substates supported by
an Intel CPU C-state.

Test: Can read out the supported C-state substates.

Change-Id: Ie57e87609ea5d6ec6f37154e8b84f1e9574aa4a9
Signed-off-by: Patrick Rudolph 
---
M src/arch/x86/cpu_common.c
M src/arch/x86/include/arch/cpu.h
2 files changed, 29 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/24/78224/2