[M] Change in coreboot[main]: device/pciexp_device.c: Fix setting Max Payload Size

[Michał Żygowski (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Felix Held, Kyösti Mälkki, Nico Huber, Patrick Rudolph.

Michał Żygowski has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/77338?usp=email )

Change subject: device/pciexp_device.c: Fix setting Max Payload Size
......................................................................

Patch Set 11:

(1 comment)

Patchset:

PS11:
> So I looked into the spec again and the reasons why we handled this (badly) […]

Thanks for the insights Nico.

Indeed, leveling all the Max Payload Size to 0 (128B) would work too.