Change in coreboot[master]: mb/prodrive/hermes: Disable ACPI S3 and S4 with SPS

[Michael Niewöhner (Code Review)]

Attention is currently required from: [e-mail], Guido Beyer @ Prodrive Technologies, Justin van Son, Patrick Rudolph, Christian Walter, Angel Pons, Stef van Os.
Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/54058 )

Change subject: mb/prodrive/hermes: Disable ACPI S3 and S4 with SPS
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Patch Set 1: Code-Review+2

(1 comment)

Patchset:

PS1:
> Does S3 resume work on the X11 boards with ME instead of SPS? Something you could check is whether the RAM can ever stay powered on in S3, where only the +5VSB rail remains powered on.

Damn, thanks for reminding me. IIRC that was the problem, why S3 doesn't work on these server boards... may be different on the desktop / workstation boards, though.
> Ideally, coreboot would detect the ME/SPS firmware SKU and report supported sleep states accordingly. However, this involves more work.

Thought about that, too, but we can't detect if S3 is supported by the hardware so we still need a Kconfig for S3/S5 hardware support.