Change in coreboot[master]: soc/mediatek: Fill coreboot table with PCIe info

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Hung-Te Lin, Jianjun Wang.
Yu-Ping Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63252 )

Change subject: soc/mediatek: Fill coreboot table with PCIe info
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Patch Set 12:

(2 comments)

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

https://review.coreboot.org/c/coreboot/+/63252/comment/c62436d8_fdf12d15 
PS12, Line 216: 	if (pci_root_bus()) {
Rewrite as

if (!pci_root_bus())
     return CB_ERR;
 ...

https://review.coreboot.org/c/coreboot/+/63252/comment/bd966f10_4f804715 
PS12, Line 217: 		pcie->ctrl_base = mtk_pcie_get_controller_base(0);
Set other fields to 0 (using memset)?