Change in coreboot[master]: soc/mediatek: Add PCIe support

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Shelley Chen, Hung-Te Lin, Furquan Shaikh, Paul Menzel, Jianjun Wang.
Yu-Ping Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56791 )

Change subject: soc/mediatek: Add PCIe support
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Patch Set 5:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/56791/comment/02fa8b4e_6f16ce41 
PS3, Line 11:
> > Since this file is not platform related, I'm not sure if this is a good idea to add this comment i […]

Ack

File src/soc/mediatek/common/pcie.c:

https://review.coreboot.org/c/coreboot/+/56791/comment/84e1aad3_0504b512 
PS3, Line 85: static inline int mtk_fls(int x)
> Maybe commonlib/bsd/include/commonlib/bsd/helpers. […]

Ack