wireshark: make enums global instead of local
These were exceeding the limit of 200 locals.
diff --git a/wireshark_gen/templates/openflow.lua b/wireshark_gen/templates/openflow.lua
index 9ce51d2..ef826c1 100644
--- a/wireshark_gen/templates/openflow.lua
+++ b/wireshark_gen/templates/openflow.lua
@@ -52,7 +52,7 @@
:: for version, ofproto in ir.items():
:: for enum in ofproto.enums:
-local enum_v${version.wire_version}_${enum.name} = {
+enum_v${version.wire_version}_${enum.name} = {
:: for (name, value) in enum.values:
[${value}] = "${name}",
:: #endfor