fu-engine: Clarify which devices don't have upgrades (Fixes #397)
fu-engine: Clarify which devices don't have upgrades (Fixes #397)

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