message: trace-read: Fix high-prec vblank timestamps
  Do not subtract `min_file_ts` when assigning the high-prec vblank
  timestamp.
  This fixes a regression of high-prec vblank TS not showing up,
  introduced by
  trace-read: do not modify timestamps in ftrace events
diff: @@ -1739,7 +1739,7 @@ static int trace_enum_events( trace_data_t &trace_data, tracecmd_input_t *handle
  unsigned long long val = pevent_read_number( pevent,
  ( char * )record->data + format->offset, format->size );
  - trace_event.vblank_ts = val - trace_data.trace_info.min_file_ts;
  + trace_event.vblank_ts = val;
  }
  else if ( trace_event.name == trace_data.drm_vblank_event_str &&
  format_name == trace_data.high_prec_str &&
  