Refactor (NGAP): adopt TO_ENUM/TO_TEXT pattern for NGAP enums

TO_ENUM/TO_TEXT are already used in NAS, and can be adopted in NGAP.
To avoid duplication, the following changes are introduced:

* Move text_info_t, TO_ENUM, TO_TEXT to common/utils/utils.h
* Include utils.h include to ngap_messages_types.h, fgs_nas_utils.h, and fgmm_lib.h
* RRC establishment cause: refactor to FOREACH_RRC_ESTABLISHMENT_CAUSE macro
* Cause Group: refactor to FOREACH_CAUSE_GROUP macro
* Radio Network Cause: refactor to FOREACH_CAUSE_RADIO_NETWORK macro
* Protocol Cause: refactor to FOREACH_CAUSE_PROTOCOL macro

This change is preparatory to the introduction the paging lib with unit
tests, with the goal of reducing the inter-dependency between concurrent
NGAP libs.

openair3/NAS/NR_UE/5GS/5GMM/IES/FGSMobileIdentity.h

@@ -32,6 +32,7 @@
 #include <stdint.h>
 #include "OctetString.h"
 #include "fgs_nas_utils.h"
+#include "common/utils/utils.h" // text_info_t, TO_ENUM, TO_TEXT
 
 #ifndef FGS_MOBILE_IDENTITY_H_
 #define FGS_MOBILE_IDENTITY_H_

openair3/NAS/NR_UE/5GS/5GMM/MSG/fgmm_lib.h

@@ -32,6 +32,7 @@
 #include <stdbool.h>
 #include "fgs_nas_utils.h"
 #include "common/utils/ds/byte_array.h"
+#include "common/utils/utils.h"
 
 /* The following defines are valide for
 both PDU Session Status and PDU session Reactivation Result IEs */

openair3/NAS/NR_UE/5GS/5GSM/MSG/PduSessionEstablishmentAccept.c

@@ -23,6 +23,7 @@
 #include <arpa/inet.h>
 #include "PduSessionEstablishmentAccept.h"
 #include "common/utils/LOG/log.h"
+#include "common/utils/utils.h" // text_info_t, TO_ENUM, TO_TEXT
 #include "fgs_nas_utils.h"
 
 /**

openair3/NAS/NR_UE/5GS/5GSM/MSG/PduSessionEstablishmentAccept.h

@@ -25,6 +25,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include "fgs_nas_utils.h"
+#include "common/utils/utils.h" // text_info_t, TO_ENUM, TO_TEXT
 
 /* PDU Session Establish Accept Optional IE Identifiers - TS 24.501 Table 8.3.2.1.1 */
 

openair3/NAS/NR_UE/5GS/fgs_nas_utils.h

@@ -29,15 +29,6 @@
 #include "utils.h" // text_info_t, TO_ENUM, TO_TEXT
 #include "common/utils/eq_check.h"
 
-/* Map task id to printable name. */
-typedef struct {
-  int id;
-  char text[256];
-} text_info_t;
-
-#define TO_TEXT(LabEl, nUmID) {nUmID, #LabEl},
-#define TO_ENUM(LabEl, nUmID ) LabEl = nUmID,
-
 #define GET_SHORT(input, size) ({           \
     uint16_t tmp16;                         \
     memcpy(&tmp16, (input), sizeof(tmp16)); \