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

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Hung-Te Lin, Arthur Heymans, Shelley Chen, Furquan Shaikh, Paul Menzel, Angel Pons, 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 13: Code-Review+1

(2 comments)

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

https://review.coreboot.org/c/coreboot/+/56791/comment/f6d6430a_dae33305 
PS11, Line 3: arch
> No need, removed

don't we need it for write32p?

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

https://review.coreboot.org/c/coreboot/+/56791/comment/683854e0_0bb850f0 
PS13, Line 190: 		__func__, range_type, mmio_res->cpu_addr, mmio_res->pci_addr,
indentation