update pyloxi to loxigen-artifacts @ c5aa7c7e694f3679b53f92844eb955d74719ca95
diff --git a/src/python/loxi/of11/const.py b/src/python/loxi/of11/const.py
index 3366ba1..a951bcf 100644
--- a/src/python/loxi/of11/const.py
+++ b/src/python/loxi/of11/const.py
@@ -190,11 +190,13 @@
 OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID = 1
 OF_BSN_VPORT_L2GRE_DSCP_ASSIGN = 2
 OF_BSN_VPORT_L2GRE_DSCP_COPY = 4
+OF_BSN_VPORT_L2GRE_LOOPBACK_IS_VALID = 8
 
 ofp_bsn_vport_l2gre_flags_map = {
     1: 'OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID',
     2: 'OF_BSN_VPORT_L2GRE_DSCP_ASSIGN',
     4: 'OF_BSN_VPORT_L2GRE_DSCP_COPY',
+    8: 'OF_BSN_VPORT_L2GRE_LOOPBACK_IS_VALID',
 }
 
 # Identifiers from group ofp_bsn_vport_q_in_q_untagged