For LiteOn DU, we do not receive the MIB/SIB1 in the F1 Setup Request.
This is not a problem in itself, but it might happen that certain
procedures are executed without MIB/SIB1. Check for it and handle
appropriately:
- During normal connection establishment, we might not be able to
  calculate measurement config
- During reestablishment, we might not be able to calculate ARFCN SSB
  and cannot do reestablishment; do RRC setup instead.