Ensure Get-Device-ID conforms to IPMI spec

* Refactor response from constant array to explicitly commented fields.
* Update comments for fields.
* Refer to FSP implementation where appropriate.

Note: Some of the fields present here should be filled in from MRW or
runtime settings in the future.

Resolves openbmc/openbmc#435.

Change-Id: I733274e237cf28d5048c44d527a8fd67a0392168
Signed-off-by: Nan Li <william.bjlinan@hotmail.com>
1 file changed