Fix IsEM bitmasks for medium and tight at HLT
This is a fix on the setup of ElectronPhotonSelectorTools at HLT where we were using wrong IsEM bitmasks for both medium and tight. This bug explains discrepacnies in counts and efficiencies in medium photon triggers comparing Run-2 and Run-3 discussed in TrigEgamma meetings like in here:https://indico.cern.ch/event/1056450/contributions/4439790/attachments/2276992/3868350/QTask_Update.pdf and slide 15 in here https://indico.cern.ch/event/1053427/contributions/4426724/attachments/2273124/3860903/Valid2906.pdf