Change in coreboot[master]: mb/prodrive/atlas: Disable ASPM for i225 port

[Paul Menzel (Code Review)]

Attention is currently required from: Lean Sheng Tan.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63466 )

Change subject: mb/prodrive/atlas: Disable ASPM for i225 port
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Patch Set 5:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63466/comment/6248c781_77d0f46c 
PS5, Line 9: I225 doesn’t support ASPM, so disable it at the root port.
Where is the source for that statement? The [product brief][1] writes:
> Active State Power Management (ASPM): Optionality Compliance bit enables ASPM or runs ASPM compliance tests to support entry to LOs.

[1]: https://d2pgu9s4sfmw1s.cloudfront.net/UAM/Prod/Done/a062E00001Q1gAwQAJ/2caba...