[ONOS-7885] Adding Terminal_device device Type

Change-Id: I42a8f8aeef73e1d51d4b5128b9eb7e8879d0418c
diff --git a/core/protobuf/models/proto/net/device/DeviceEnumsProto.proto b/core/protobuf/models/proto/net/device/DeviceEnumsProto.proto
index aaecef0..e74503c 100644
--- a/core/protobuf/models/proto/net/device/DeviceEnumsProto.proto
+++ b/core/protobuf/models/proto/net/device/DeviceEnumsProto.proto
@@ -34,6 +34,7 @@
     FIBER_SWITCH = 12;
     MICROWAVE = 13;
     OLS = 14;
+    TERMINAL_DEVICE = 15;
 }
 
 enum DeviceEventTypeProto {