ONOS-7744 ONOS-7742 Don't send pkt on ingress port and always decrement TTL in fabric.p4

Change-Id: I998c67cef93c59bba3a48cb01a2bbcc4e66ac171
diff --git a/pipelines/fabric/src/main/resources/include/header.p4 b/pipelines/fabric/src/main/resources/include/header.p4
index 1c8dcfd..c81ec51 100644
--- a/pipelines/fabric/src/main/resources/include/header.p4
+++ b/pipelines/fabric/src/main/resources/include/header.p4
@@ -152,6 +152,7 @@
     fwd_type_t fwd_type;
     next_id_t next_id;
     _BOOL pop_vlan_when_packet_in;
+    _BOOL drop_if_egress_is_ingress;
     bit<8> ip_proto;
     bit<16> l4_src_port;
     bit<16> l4_dst_port;