[coreboot-gerrit] Change in coreboot[master]: vboot: update vboot2 functions to use new vb2_error_t

[Joel Kitching (Code Review)]

Joel Kitching has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34860 )

Change subject: vboot: update vboot2 functions to use new vb2_error_t
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Patch Set 1:

pgeorgi@: Would it be better if I squashed these two commits?
I think that may be the only way that we can make Jenkins happy...