Fabric.p4 cherry-picks from onos-2.2

Publish fabric.p4 constants with fabric-api artifact

For consumption by third-party apps who wish to operate directly on
fabric.p4 tables and other entities.

(cherry picked from commit 8f6b5cdabf7828f6f7c017f288aad87c7bd0911a)

Backport fabric-tna dbuf support to v1model
(cherry picked from commit 4d1d67fa3abb4d7517e5836fbb82c899acffa951)

Update SPGW p4 namespace to match fabric-tna
(cherry picked from commit 35e4d196eb61104e7f96c62361a100bb454ee1cf)

Change-Id: I3230a508a601180060e1041d4369a54f519658e1
diff --git a/pipelines/fabric/impl/src/main/resources/Makefile b/pipelines/fabric/impl/src/main/resources/Makefile
index 5353342..11cdba9 100644
--- a/pipelines/fabric/impl/src/main/resources/Makefile
+++ b/pipelines/fabric/impl/src/main/resources/Makefile
@@ -26,7 +26,7 @@
 endif
 	docker run -v $(ONOS_ROOT):/onos -w /onos/tools/dev/bin \
 		--entrypoint ./onos-gen-p4-constants opennetworking/p4mn:stable \
-		-o /onos/pipelines/fabric/impl/src/main/java/org/onosproject/pipelines/fabric/impl/behaviour/FabricConstants.java \
+		-o /onos/pipelines/fabric/api/src/main/java/org/onosproject/pipelines/fabric/FabricConstants.java \
 		fabric /onos/pipelines/fabric/impl/src/main/resources/p4c-out/fabric-full/bmv2/default/p4info.txt
 
 clean: