Update of discovery for TAPI OLS based on ADVA testing

Change-Id: I1037fa877c88164a805d15f265fd918ec9c1d33d
diff --git a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/tapi/TapiDeviceHelper.java b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/tapi/TapiDeviceHelper.java
index dee318c..efbc12d 100644
--- a/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/tapi/TapiDeviceHelper.java
+++ b/drivers/odtn-driver/src/main/java/org/onosproject/drivers/odtn/tapi/TapiDeviceHelper.java
@@ -38,6 +38,7 @@
     private static final Logger log = getLogger(TapiDeviceHelper.class);
 
     public static final String SERVICE_INTERFACE_POINT = "service-interface-point";
+    public static final String TAPI_COMMON = "tapi-common";
     public static final String CONTEXT = "tapi-common:context";
     public static final String UUID = "uuid";
     public static final String MEDIA_CHANNEL_SERVICE_INTERFACE_POINT_SPEC =