VOL-2734 Adding inner vlan id field to McastConfig to configure inner vlan id
value for double-tagged multicast flows. The full path of the task:
https://jira.opencord.org/browse/VOL-2734

Change-Id: Idad8d2e86cf9ec4f69b3501cf9ed666444b650f4
diff --git a/core/api/src/test/resources/mcast-config-invalid-inner.json b/core/api/src/test/resources/mcast-config-invalid-inner.json
new file mode 100644
index 0000000..e3be43f
--- /dev/null
+++ b/core/api/src/test/resources/mcast-config-invalid-inner.json
@@ -0,0 +1,3 @@
+{
+  "egressInnerVlan" : "5000"
+}
\ No newline at end of file