Change in coreboot[master]: commonlib/region: [WIP] Add region protect API

[Arthur Heymans (Code Review)]

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/28724 )

Change subject: commonlib/region: [WIP] Add region protect API
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Patch Set 1:

(1 comment)

https://review.coreboot.org/#/c/28724/1/src/commonlib/include/commonlib/regi...
File src/commonlib/include/commonlib/region.h:

https://review.coreboot.org/#/c/28724/1/src/commonlib/include/commonlib/regi...
PS1, Line 67: Returns < 0 on error otherwise returns 0 on success, < 0 0n error.
use enum cb_err with CB_SUCCESS and CB_ERR.