The docs are shipped the same way as for x86. So we should either not mention it anywhere or mention it there as well. I'm not sure as this would be duplicated with it being mentioned on the linux flavour
While I agree with you here, I still find this a bit unnatural. I think the default user/password should be defined in a separate document and referenced when needed. There is a good level of duplication with favour so another option would be to reuse that by referencing accordingly (this will also include the login information).
@agherzan , @lucaseri , would you like to cover the bug (either add the information or put in some separate document) or you prefer to have someone another assigned?