dfu: Return failure when getting device status fails
dfu: Return failure when getting device status fails

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