[coreboot-gerrit] Change in coreboot[master]: soc/amd/common/lpc/espi_util: use enum cb_err type for return values

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Felix Held.
Raul Rangel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/60208 )

Change subject: soc/amd/common/lpc/espi_util: use enum cb_err type for return values
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Patch Set 2: Code-Review+2