trivial: Check for zero size firmware image
trivial: Check for zero size firmware image

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