Implement NOP in routing v4 table

Change-Id: Ia238cf88eb1ed5e23309f3b2cab7f1403f30dafe
diff --git a/pipelines/fabric/src/main/java/org/onosproject/pipelines/fabric/FabricConstants.java b/pipelines/fabric/src/main/java/org/onosproject/pipelines/fabric/FabricConstants.java
index 0c0b380..78cf071 100644
--- a/pipelines/fabric/src/main/java/org/onosproject/pipelines/fabric/FabricConstants.java
+++ b/pipelines/fabric/src/main/java/org/onosproject/pipelines/fabric/FabricConstants.java
@@ -177,6 +177,8 @@
             PiActionId.of("FabricEgress.process_int_transit.int_set_header_0003_i10");
     public static final PiActionId FABRIC_INGRESS_NEXT_MPLS_ROUTING_V6_SIMPLE =
             PiActionId.of("FabricIngress.next.mpls_routing_v6_simple");
+    public static final PiActionId FABRIC_INGRESS_FORWARDING_NOP_ROUTING_V4 =
+            PiActionId.of("FabricIngress.forwarding.nop_routing_v4");
     public static final PiActionId FABRIC_EGRESS_PROCESS_INT_TRANSIT_INT_UPDATE_TOTAL_HOP_CNT =
             PiActionId.of("FabricEgress.process_int_transit.int_update_total_hop_cnt");
     public static final PiActionId FABRIC_INGRESS_FILTERING_NOP_INGRESS_PORT_VLAN =