Backport Broadwell's s0ix support to Haswell in preparation to unify
both platforms' CPU code. Note that only ULT variants support s0ix.
This option is currently unused, but will be put to use in subsequent
commits, when switching Broadwell mainboards to use Haswell's CPU code.
Tested with BUILD_TIMELESS=1, Asrock B85M Pro4 remains identical.
Change-Id: I91c6f937c09c9254a6f698f3a6fb6366364e3b2b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46924
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
8e6f162cc0