bsc: Add TC_unsol_ho_fail test case for unsolicited handover failure

Change-Id: Ic3bd71d77d03cb7eebabdf98ba0bfbafd24ec0ea
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index ad4e575..948565d 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -302,6 +302,23 @@
 	}
 }
 
+template (value) PDU_ML3_MS_NW ts_RRM_HandoverFailure(OCT1 cause) := {
+	discriminator := '0000'B, /* overwritten */
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		rrm := {
+			handoverFailure := {
+				messageType := '00101000'B,
+				rRCause := {
+					valuePart := cause
+				},
+				pSCause := omit
+			}
+		}
+	}
+}
 
 function ts_CM3_TLV(template (omit) OCTN cm3) return template MobileStationClassmark3_TLV {
 	if (not isvalue(cm3)) {