[ONOS-7154] Initial INT pipeline implementation

Change-Id: I85829350349c77abfcb14445de290be599573fea
diff --git a/pipelines/basic/src/main/resources/basic.p4 b/pipelines/basic/src/main/resources/basic.p4
index a291303..387cd0d 100644
--- a/pipelines/basic/src/main/resources/basic.p4
+++ b/pipelines/basic/src/main/resources/basic.p4
@@ -18,6 +18,7 @@
 #include <v1model.p4>
 
 #include "include/headers.p4"
+#include "include/custom_headers.p4"
 #include "include/defines.p4"
 #include "include/parsers.p4"
 #include "include/actions.p4"