[XS] Change in coreboot[main]: soc/amd/common/vboot: Fix the PSP verstage timestamps

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Felix Held, Fred Reitberger, Jason Glenesk, Martin Roth, Matt DeVillier, Tim Van Patten.

Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78231?usp=email )

Change subject: soc/amd/common/vboot: Fix the PSP verstage timestamps
......................................................................

Patch Set 1:

(1 comment)

File src/soc/amd/common/vboot/vboot_bootblock.c:

https://review.coreboot.org/c/coreboot/+/78231/comment/a9cf5944_087a4d7b :
PS1, Line 48: 		 * We ignore the time between x86 processor release and bootblock.
            : 		 * Since timestamp_add subtracts base_time, we first add old base_time
            : 		 * to make it absolute then add base_timestamp again since
            : 		 * it'll be a new base_time.
> It looks like this needs to be updated to describe why `tse->entry_stamp` is added also.

Actually this comment already is saying that base_time is added to entry_timestamp to make it absolute.

Conversion comment is coming after that. So I think the comment itself does not need update.