[gNB] NGAP: BROADCAST SESSION SETUP FAILURE

[Borjis131]

Following 3GPP TS 38.413 - Release 17.11.0

Add NGAP IEs:

• 9.3.1.1 - Message Type
• 9.3.2.206 - MBS Session ID
• 9.3.5.6 - MBS Session Setup or Modification Failure Transfer
• 9.3.1.2 - Cause
• 9.3.1.3 - Criticality Diagnostics

9.2.16.3 NGAP BROADCAST SESSION SETUP FAILURE:

• Message Type (M, criticality, reject)
• MBS Session ID (M, criticality, reject)
• MBS Session Setup Failure Transfer (O, criticality, ignore)
• Cause (M, criticality, ignore)
• Criticality Diagnostics (O, criticality, ignore)