In fabric.p4 do not parse int_data if sink is not enabled

Change-Id: Ie4d5b9ccdf31ea1142945365fca7db7b8d4ae3f9
diff --git a/pipelines/fabric/src/main/resources/include/header.p4 b/pipelines/fabric/src/main/resources/include/header.p4
index 46fa022..df29408 100644
--- a/pipelines/fabric/src/main/resources/include/header.p4
+++ b/pipelines/fabric/src/main/resources/include/header.p4
@@ -209,7 +209,9 @@
     int_egress_tstamp_t int_egress_tstamp;
     int_q_congestion_t int_q_congestion;
     int_egress_port_tx_util_t int_egress_tx_util;
+#ifdef WITH_INT_SINK
     int_data_t int_data;
+#endif // WITH_INT_SINK
     intl4_tail_t intl4_tail;
 #endif //WITH_INT
 }