[M] Change in coreboot[main]: soc/mediatek: Add mtk_pcie_deassert_perst for early PCIe reset

[Yidi Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Jianjun Wang.

Yidi Lin has posted comments on this change by Yidi Lin. ( https://review.coreboot.org/c/coreboot/+/84117?usp=email )

Change subject: soc/mediatek: Add mtk_pcie_deassert_perst for early PCIe reset
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Patch Set 4:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/84117/comment/ea8f24e4_151860ec?usp... :
PS2, Line 7: PCIE
> PCIe

Done

https://review.coreboot.org/c/coreboot/+/84117/comment/07469ea9_1ed930b6?usp... :
PS2, Line 7: /common/pcie
> Let's remove this to reduce the length.

Done

https://review.coreboot.org/c/coreboot/+/84117/comment/a4648533_b4dff687?usp... :
PS2, Line 10: 47
> 47ms

Done