[coreboot-gerrit] Change in coreboot[master]: Update vboot submodule to upstream master

[Julius Werner (Code Review)]

Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/37476 )

Change subject: Update vboot submodule to upstream master
......................................................................

Patch Set 1:

I Tim, seems like we had the same idea at the same time (CB:37472)?

One of the patches in here depends on stuff that needs to change in coreboot, so I think we'll need to split it up like I did.