Fix to metadata copied to egress

Now only the metadata really needed in egress are copied during the clone action

Change-Id: I793b61b6094894444ce71d478648032d39627bdf
diff --git a/pipelines/fabric/src/main/resources/include/control/acl.p4 b/pipelines/fabric/src/main/resources/include/control/acl.p4
index 0ab57b5..bf70f15 100644
--- a/pipelines/fabric/src/main/resources/include/control/acl.p4
+++ b/pipelines/fabric/src/main/resources/include/control/acl.p4
@@ -43,7 +43,7 @@
 
     // Set clone session id for a I2E clone session
     action set_clone_session_id(bit<32> clone_id) {
-        clone3<standard_metadata_t>(CloneType.I2E, clone_id, standard_metadata);
+        clone3(CloneType.I2E, clone_id, {standard_metadata.ingress_port});
         acl_counter.count();
     }