Change in coreboot[master]: device: Allow configuring bus mastering for PCI bridges conditionally

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/45150 )

Change subject: device: Allow configuring bus mastering for PCI bridges conditionally
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Patch Set 4:

(1 comment)

https://review.coreboot.org/c/coreboot/+/45150/4/src/device/Kconfig 
File src/device/Kconfig:

https://review.coreboot.org/c/coreboot/+/45150/4/src/device/Kconfig@541 
PS4, Line 541: 	  Let coreboot configure bus mastering for PCI bridges.
Maybe extend with:

Enabling bus mastering for a PCI bridge also allows it to forward
    requests from downstream devices. Currently, payloads ignore this
    and only enable bus mastering for the downstream device. Hence,
    this option is needed for compatibility until payloads are fixed.