Change in coreboot[master]: mb/ocp/deltalake: Implement skipping TXT lockdown via VPD

[Arthur Heymans (Code Review)]

Attention is currently required from: Anjaneya "Reddy" Chagam, Patrick Rudolph, Jonathan Zhang, Johnny Lin, Angel Pons, Morgan Jang.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50237 )

Change subject: mb/ocp/deltalake: Implement skipping TXT lockdown via VPD
......................................................................

Patch Set 1:

(1 comment)

File src/mainboard/ocp/deltalake/ramstage.c:

https://review.coreboot.org/c/coreboot/+/50237/comment/6ad1ff1c_123ddcd9 
PS1, Line 368: 	static bool fetched_vpd = 0;
> Do you really need to cache this? The function is only called once

The follow-up patch does ;)