[S] Change in coreboot[main]: soc/amd/cezanne: Add ACPI opregion to root complex

[Matt DeVillier (Code Review)]

Attention is currently required from: Felix Held, Fred Reitberger, Jason Glenesk, Matt DeVillier.

Matt DeVillier has posted comments on this change by Matt DeVillier. ( https://review.coreboot.org/c/coreboot/+/77682?usp=email )

Change subject: soc/amd/cezanne: Add ACPI opregion to root complex
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Patch Set 6:

(1 comment)

File src/soc/amd/cezanne/root_complex.c:

https://review.coreboot.org/c/coreboot/+/77682/comment/e4672abe_06c7d42b?usp... :
PS6, Line 63: Add ACPI device, opregion to host bridge needed for Windows ACP driver.
            : 	 *
            : 	 * This provides a mailbox interface for the ACP drivers to notify the PSP
            : 	 * that the DSP firmware has been loaded, so that the PSP can validate
            : 	 * the firmware and set the qualifier bit to enable running it.
is this comment still valid? or should we make it more generic?