Huawei Driver to provide port statistics.

Change-Id: I611006bcb3b0e5c84805ec0bcf902ef84b51e73b
diff --git a/drivers/huawei/driver/src/main/resources/huawei-drivers.xml b/drivers/huawei/driver/src/main/resources/huawei-drivers.xml
index ea6ec48..35a1302 100644
--- a/drivers/huawei/driver/src/main/resources/huawei-drivers.xml
+++ b/drivers/huawei/driver/src/main/resources/huawei-drivers.xml
@@ -21,5 +21,7 @@
                    impl="org.onosproject.drivers.huawei.HuaweiL3vpnConfig"/>
         <behaviour api="org.onosproject.net.device.DeviceDescriptionDiscovery"
                    impl="org.onosproject.drivers.huawei.HuaweiDeviceDescription"/>
+        <behaviour api="org.onosproject.net.device.PortStatisticsDiscovery"
+                   impl="org.onosproject.drivers.huawei.HuaweiDeviceDescription"/>
     </driver>
 </drivers>