wake on lan has two constraints

[cecille]

One probably comes from the type, the other is desc, but it's not totally clear what that means in practice. project-chip/connectedhomeip#40846 (comment)

[hasty]

Yeah, this is getting that constraint from the data type, which gets converted to an octet string. This is there to support ZAP XML, so I'll have to move this little patch downstream to not affect the data model generation.

[cecille]

Not a super high priority if this is going to be a pain, btw. Tennessee noticed when reviewing the DM files. We're not using the constraints for anything interesting currently so this isn't a fire or anything.