library: GTPv1C: fix ts_MM_Context{GSM,UMTS} templates

Set the values according to 3GPP TS 29.060 version 17.4.0 Release 17.

* Field 'spare' is defined as 'Spare 1111' in Table 40 (missing '1').
* Field 'spare1' is defined as 'Spare 111' in Table 41.
* Field 'security' must be set as per Table 47.

Change-Id: Ic8abb048f7c1fa795ee472820c5b88de0073dc66
Fixes: f95460b55 "GTP_Templates: Add templates for some GTPv1C IEs"
Fixes: fdde16846 "library: GTPv1C add ts_MM_ContextGSM"

library/GTPv1C_Templates.ttcn

@@ -346,10 +346,10 @@ module GTPv1C_Templates {
 			mmcontGSM := {
 				lengthf := 0, /* overwritten */
 				cksn := cksn,
-				spare := '00000'B,
+				spare := '11111'B,
 				usedCipher := gea,
-				noofVectors := 0,
-				security := '00'B, /* XXX */
+				noofVectors := 0, /* overwritten */
+				security := '01'B, /* GSM key and triplets */
 				kc := kc,
 				triplet := ''O,
 				drx_par := '0000'O,
@@ -372,9 +372,9 @@ module GTPv1C_Templates {
 				usedGPRSIntegrityAlgorithm := '000'B,
 				ugipai := '1'B, /* Integrity Protection not required */
 				gupii := '1'B, /* Ignore "Used GPRS integrity protection algorithm" field" */
-				spare1 := '000'B,
+				spare1 := '111'B,
 				noofVectors := 0, /* TODO: fill quintpuplets*/
-				security := '01'B, /* UMTS key and quintuplets */
+				security := '10'B, /* UMTS key and quintuplets */
 				ck := ck,
 				ik := ik,
 				quintupletlength := 0, /* overwritten */