[ONOS-3291] Match fields added in LOXI for NSH extension

Change-Id: I3a51c914afb9ee3c836de2800ae9cb87d9a1470a
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/match/MatchFields.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/match/MatchFields.java
index be36713..ed8a230 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/match/MatchFields.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/match/MatchFields.java
@@ -85,4 +85,10 @@
     REG5,
     REG6,
     REG7,
+    NSH_SPI,
+    NSH_SI,
+    NSH_CH1,
+    NSH_CH2,
+    NSH_CH3,
+    NSH_CH4,
 }