update BeamSpotMon limits
update limits and required nPVs to what was being used online in /group/hlt/alig_calib/beamspotmonB since 10th May https://lblogbook.cern.ch/Alignment+and+calibration/545
cc @spradlin
update limits and required nPVs to what was being used online in /group/hlt/alig_calib/beamspotmonB since 10th May https://lblogbook.cern.ch/Alignment+and+calibration/545
cc @spradlin