h2olog: fix new h2o tracers
h2olog: fix new h2o tracers

yannick/h2o,yannick/h2o,devnexen/h2o,cwyang/h2o,cwyang/h2o,cwyang/h2o,devnexen/h2o,devnexen/h2o,devnexen/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,yannick/h2o,cwyang/h2o,cwyang/h2o,devnexen/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,cwyang/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,yannick/h2o,h2o/h2o