Fix Sector overlap issue in TrigL2MuonSA
As discussed in a Muon Trigger meeting on Jan 26 (https://indico.cern.ch/event/1245450/#12-update-on-l2sa-algorithm-fo), we found a poor pT resolution of TrigL2MuonSA when a muon passes through regions where small and large sectors are overlaped. This MR restricts MDT hits in barrel to one sector to solve the issue. The super-point (segment) reconstruction efficiency will be slightly decreased, but pT calculation efficiency is still 100%.