Change in coreboot[master]: [WIP] teleplatforms/D4E4S16P8: Configure ast25xx bootstraps

[Angel Pons (Code Review)]

Attention is currently required from: Suresh Bellampalli, Vanessa Eusebio, Michal Motyl, Kyösti Mälkki, Patrick Rudolph, David Guckian.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/36607 )

Change subject: [WIP] teleplatforms/D4E4S16P8: Configure ast25xx bootstraps
......................................................................

Patch Set 13:

(1 comment)

File src/soc/intel/denverton_ns/chip.c:

https://review.coreboot.org/c/coreboot/+/36607/comment/225701e3_babebfa8 
PS7, Line 73: /* Debug output, remove if it stalls here. */
            : 	pci_dump_ast25xx_path();
            : 
            : 	ast25xx_probe();
            : 
            : 	/* Debug output, remove if it stalls here. */
            : 	pci_dump_ast25xx_path();
> It will go into mainboard/ one day.

`ast25xx_probe()` can be called from mainboard code using `mainboard_ops`.