Merge remote-tracking branch 'Rakesh_B_B/develop' into integration_2025_w46 (!3722)

[NGAP] Fix incorrect AMF Set ID type (uint8 → uint16) causing AMF lookup failure

This PR fixes issue #1012 , a data type issue related to the AMF Set ID used
during UE RRC reestablishment. The AMF Set ID was mistakenly declared as uint8_t
instead of uint16_t, even though it is a 10-bit field as specified in 3GPP TS
23.003 section 2.10.1. As a result, AMF Set IDs greater than 255 were truncated,
leading to failed AMF lookups and the following warning: No matching AMF found
for PLMN (MCC=%03d MNC=%0*d) and AMF SetID=%u.
Verified reestablishment succeeds with AMF Set IDs >255.

openair3/NGAP/ngap_gNB_nnsf.c

@@ -156,7 +156,7 @@ ngap_gNB_amf_data_t *ngap_gNB_nnsf_select_amf_by_plmn_id(ngap_gNB_instance_t *in
 ngap_gNB_amf_data_t *ngap_gNB_nnsf_select_amf_by_amf_setid(ngap_gNB_instance_t *instance_p,
                                                            const ngap_rrc_establishment_cause_t cause,
                                                            const plmn_id_t selected_plmn_identity,
-                                                           uint8_t amf_setid)
+                                                           uint16_t amf_setid)
 {
   struct ngap_gNB_amf_data_s *amf_data_p = NULL;
 

openair3/NGAP/ngap_gNB_nnsf.h

@@ -43,7 +43,7 @@ ngap_gNB_amf_data_t *ngap_gNB_nnsf_select_amf_by_plmn_id(ngap_gNB_instance_t *in
 ngap_gNB_amf_data_t *ngap_gNB_nnsf_select_amf_by_amf_setid(ngap_gNB_instance_t *instance_p,
                                                            const ngap_rrc_establishment_cause_t cause,
                                                            const plmn_id_t selected_plmn_identity,
-                                                           uint8_t amf_setid);
+                                                           uint16_t amf_setid);
 
 ngap_gNB_amf_data_t *ngap_gNB_nnsf_select_amf_by_guami(ngap_gNB_instance_t *instance_p,
                                                        const ngap_rrc_establishment_cause_t cause,