GSM_Types: Switch TLLI from uint32_t to OCT4

The TLLI is not really a number, but an opaque 4-byte value.

Change-Id: I0901340a2211eeeb899f312bcc60573fec11f220
diff --git a/library/Osmocom_Gb_Types.ttcn b/library/Osmocom_Gb_Types.ttcn
index 2f2a8ba..a3121b5 100644
--- a/library/Osmocom_Gb_Types.ttcn
+++ b/library/Osmocom_Gb_Types.ttcn
@@ -551,7 +551,7 @@
 	template PDU_BSSGP ts_BSSGP_DL_UD(GprsTlli tlli, octetstring pdu) := {
 		pDU_BSSGP_DL_UNITDATA := {
 			bssgpPduType := '00'O,
-			tLLI_current := f_oct_or_wc(tlli, 4),
+			tLLI_current := tlli,
 			qoS_Profile := t_defaultQos,
 			pDU_Lifetime := t_DefaultLifetime(65535),
 			mS_Radio_Access_Capability := omit,
@@ -608,7 +608,7 @@
 		}
 	}
 
-	template PDU_BSSGP ts_BSSGP_UL_UD(OCT4 tlli, BssgpCellId cell_id, octetstring payload) := {
+	template PDU_BSSGP ts_BSSGP_UL_UD(GprsTlli tlli, BssgpCellId cell_id, octetstring payload) := {
 		pDU_BSSGP_UL_UNITDATA := {
 			bssgpPduType := '01'O,
 			tLLI := tlli,
@@ -631,7 +631,7 @@
 					  template octetstring payload := ?) := {
 		pDU_BSSGP_UL_UNITDATA := {
 			bssgpPduType := '01'O,
-			tLLI := f_oct_or_wc(tlli, 4),
+			tLLI := tlli,
 			qoS_Profile := ?,
 			cell_Identifier := t_BSSGP_IE_CellId(cell_id),
 			pFI := *,