Change in coreboot[master]: libpayload/defconfig: enable vboot Lib Build

[Selma Bensaid (Code Review)]

Attention is currently required from: Bora Guvendik, Anil Kumar K, Jakub Czapiga, Tim Wawrzynczak, Julius Werner, Balaji Manigandan.
Selma Bensaid has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63240 )

Change subject: libpayload/defconfig: enable vboot Lib Build
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Patch Set 5:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63240/comment/6cf84212_664ce447 
PS3, Line 9: #3461454
> After looking at how external payloads are build in coreboot I came to conclusion, that enabling LIB […]

Tim, I update the commit. Hope this what you meant.
Jakub, sorry for the late answer. I wanted to avoid having coreboot/payloads/libpayload/configs/config.<BOARD> for all our boards, to reduce the maintenance effort.