Merge remote-tracking branch 'origin/nr-gnb-config-refactor' into integration_2025_w16 (!3293)

Cleanup and refactor initial gNB configuration

This is follow-up on !3048 (merged). Major changes in this MR:
- Add config functions to reduce redundant code repeated in multiple places in the file
- Add macros to reduce redundant code in gNB configuration
- Refactor RCconfig_NR_NG
- Cleanup obsolete and commented out code
- Refactor includes in executables/nr-gnb.c
- Introduce platform type plmn_id_t for consistency across the stack: F1AP, NGAP can now use the same struct type
- And other minor formatting

executables/nr-softmodem.c

@@ -518,9 +518,9 @@ static void initialize_agent(ngran_node_t node_type, e2_agent_args_t oai_args)
   const gNB_RRC_INST* rrc = RC.nrrrc[0];
   assert(rrc != NULL && "rrc cannot be NULL");
 
-  const int mcc = rrc->configuration.mcc[0];
-  const int mnc = rrc->configuration.mnc[0];
-  const int mnc_digit_len = rrc->configuration.mnc_digit_length[0];
+  const int mcc = rrc->configuration.plmn[0].mcc;
+  const int mnc = rrc->configuration.plmn[0].mnc;
+  const int mnc_digit_len = rrc->configuration.plmn[0].mnc_digit_length;
   // const ngran_node_t node_type = rrc->node_type;
   int nb_id = 0;
   int cu_du_id = 0;
@@ -597,8 +597,6 @@ int main( int argc, char **argv ) {
   char *pckg = strdup(OAI_PACKAGE_VERSION);
   LOG_I(HW, "Version: %s\n", pckg);
 
-  // don't create if node doesn't connect to RRC/S1/GTP
-  const ngran_node_t node_type = get_node_type();
   // Init RAN context
   if (!(CONFIG_ISFLAGSET(CONFIG_ABORT)))
     NRRCConfig();
@@ -613,6 +611,9 @@ int main( int argc, char **argv ) {
       RCconfig_nr_prs();
   }
 
+  // don't create if node doesn't connect to RRC/S1/GTP
+  const ngran_node_t node_type = get_node_type();
+
   if (NFAPI_MODE != NFAPI_MODE_PNF) {
     int ret = create_gNB_tasks(node_type, uniqCfg);
     AssertFatal(ret == 0, "cannot create ITTI tasks\n");