[atlas] Broken traffic graphs in latest firmware (5010)

Hi, A change in the RIPE Atlas probe code to make reporting traffic statistics optional in software probes (and disabled by default) has the unfortunate side-effect that reporting of traffic statistics is now disabled on Version 3 and Version 4 hardware probes, as well as all anchors. This change was rolled out in firmware version 5010. Unfortunately, this effect was not spotted during testing. We will roll out a new firmware release that corrects this issue in coming weeks. Philip