This change implements programming of EF.MSISDN as per 3GPP TS 31.102,
sections 4.2.26 and 220.127.116.11, excluding the following fields:
- Alpha Identifier (currently 'FF'O * 20),
- Capability/Configuration1 Record Identifier ('FF'O),
- Extension1 Record Identifier ('FF'O).
This feature is introduced exclusively for sysmoUSIM-SJS1.
Othere SIM card types need to be tested.