update test2-mh-bh spec file for test blackholing with torch and grafana
update test2-mh-bh spec file for test blackholing with torch and grafana

h2020-endeavour/iSDX,h2020-endeavour/iSDX,h2020-endeavour/iSDX,h2020-endeavour/iSDX,h2020-endeavour/iSDX,h2020-endeavour/iSDX,h2020-endeavour/iSDX