epdg: Test Handover from Wifi back to LTE

The Handover is informed to the EPDG by the PGW, who sends a
DeleteBearerRequest when receiving an attach from the 3GPP network once
the phone has jumped there.

Related: OS#6046
Change-Id: I299faf28fa51dbc5d2de6c72a39a01eca67a5775
diff --git a/library/GTPv2_Templates.ttcn b/library/GTPv2_Templates.ttcn
index e1e71f0..6ea06a2 100644
--- a/library/GTPv2_Templates.ttcn
+++ b/library/GTPv2_Templates.ttcn
@@ -506,11 +506,11 @@
 
 /* 8.28 */
 template (value) BearerContextIEs
-ts_GTP2C_BcContextIE(template (value) uint4_t bid,
+ts_GTP2C_BcContextIE(template (value) uint4_t ebi,
 		   template (omit) FullyQualifiedTEID_List teid_list := omit,
 		   template (omit) Bearer_QoS qos := ts_GTP2C_BearerQos('09'O, 0,0,0,0),
 		   template (omit) ChargingID charging_id := omit) := {
-	ePS_Bearer_ID 			:= ts_GTP2C_EpsBearerId(bid),
+	ePS_Bearer_ID 			:= ts_GTP2C_EpsBearerId(ebi),
 	cause 				:= ts_GTP2C_Cause(Request_accepted, '0'B),
 	ePS_Bearer_TFT 			:= omit,
 	fullyQualifiedTEID 		:= teid_list,