[non-BE][allow-regression] Resolve "[regression-merge] Decoder-Output for BINAURAL_ROOM_REVERB with rend_config_hospital_patientroom.cfg very different in BASOP vs. Float"

Closes #1831 (closed)

non-BE with regard to rendering configurations 'renderer' and 'hospital_patientroom', which were affected by erroneous predelay computation.