Ensure BcdMccMnc is encoded as 24.008 10.5.5.15

PCU is using BcdMccMnc as it's encoded as 24.008.
But SGSN code is using it as it would be byte by byte
sorted.

Fixes: OS#3878
Change-Id: Ie8f67f16f18e4c5090bc5a4c46a866a7e7e00206
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 8b639e6..74cdece 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -137,15 +137,16 @@
 };
 
 private function f_cellid_to_RAI(in BssgpCellId cell_id) return RoutingAreaIdentificationV {
+	/* mcc_mnc is encoded as of 24.008 10.5.5.15 */
 	var BcdMccMnc mcc_mnc := cell_id.ra_id.lai.mcc_mnc;
 
         var RoutingAreaIdentificationV ret := {
                 mccDigit1 := mcc_mnc[0],
                 mccDigit2 := mcc_mnc[1],
                 mccDigit3 := mcc_mnc[2],
-                mncDigit3 := mcc_mnc[5],
-                mncDigit1 := mcc_mnc[3],
-                mncDigit2 := mcc_mnc[4],
+                mncDigit3 := mcc_mnc[3],
+                mncDigit1 := mcc_mnc[4],
+                mncDigit2 := mcc_mnc[5],
                 lac := int2oct(cell_id.ra_id.lai.lac, 16),
                 rac := int2oct(cell_id.ra_id.rac, 8)
         }
@@ -225,7 +226,8 @@
 }
 
 
-function f_init(BcdMccMnc mcc_mnc := '26242F'H) runs on test_CT {
+/* mcc_mnc is 24.008 10.5.5.15 encoded. 262 42 */
+function f_init(BcdMccMnc mcc_mnc := '262F42'H) runs on test_CT {
 	if (g_initialized == true) {
 		return;
 	}