bsc: Test that ETWS Primary Notification are sent via dedicated channels

When the BSC receives an ETWS PN via CBSP, it must send it through all
established dedicated channels of the matching BTSs.

Related: OS#4046

Change-Id: Ib057bd251604e9bae968e71de245b3bbf737a356
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index bc0e797..2fb86d0 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -523,6 +523,28 @@
 	}
 }
 
+template (present) PDU_ML3_NW_MS tr_RR_APP_INFO(template (present) BIT4 apdu_id,
+						template (present) octetstring data,
+						template (present) APDU_Flags_V flags := ?) := {
+	discriminator := '0000'B, /* overwritten */
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		rrm := {
+			applicationInformation := {
+				messageType := '00111000'B,
+				aPDU_ID := apdu_id,
+				aPDU_Flags := flags,
+				aPDU_Data := {
+					lengthIndicator := ?,
+					aPDU_DataValue := data
+				}
+			}
+		}
+	}
+}
+
 template (value) PDU_ML3_NW_MS ts_RR_HandoverCommand := {
 	discriminator := '0110'B,
 	tiOrSkip := {