Fix incorrect UT strip index in decoding [v6r15-patches, 2025 PbPb MC]
See report: https://indico.cern.ch/event/1565010/#4-run3-detectors-status-and-pl
The strip index in flipped UT sensors was off by 1 (slide 7).
See report: https://indico.cern.ch/event/1565010/#4-run3-detectors-status-and-pl
The strip index in flipped UT sensors was off by 1 (slide 7).