Change in coreboot[master]: soc/intel/common: Implement error codes for for heci_send_receive()

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Paul Menzel, Tim Wawrzynczak, Subrata Banik, Kane Chen, Andrey Petrov, Patrick Rudolph.
Sridhar Siricilla has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62299 )

Change subject: soc/intel/common: Implement error codes for for heci_send_receive()
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Patch Set 6:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/62299/comment/84d93b9d_341951dc 
PS4, Line 17: timeout  or
> Only one space.

Ack

https://review.coreboot.org/c/coreboot/+/62299/comment/277d88ca_6817f128 
PS4, Line 27: TEST=Build and boot Brya board
> Could you force the error paths to see if the error codes are used correctly?

Yes, it was done as part of unit testing.