redfish: Add GUIDs lowercase to match all the other plugins
redfish: Add GUIDs lowercase to match all the other plugins

hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd