dell: only run on intended chassis
dell: only run on intended chassis

For example if trying to run on a server, they might support some
dell SMI but are architected differently.

hughsie/fwupd,hughsie/fwupd,hughsie/fwupd,vathpela/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,vathpela/fwupd,superm1/fwupd,superm1/fwupd,superm1/fwupd,vathpela/fwupd,vathpela/fwupd,fwupd/fwupd