pyloxi: fix of_wc_bmap_t for OF 1.2+
This field changed semantics, so the LOXI type probably should change too.
diff --git a/py_gen/templates/_pretty_print.py b/py_gen/templates/_pretty_print.py
index 5709227..86cb237 100644
--- a/py_gen/templates/_pretty_print.py
+++ b/py_gen/templates/_pretty_print.py
@@ -48,7 +48,7 @@
q.text(util.pretty_mac(self.${m.name}))
:: elif m.oftype.base == 'uint32_t' and m.name.startswith("ipv4"):
q.text(util.pretty_ipv4(self.${m.name}))
-:: elif m.oftype.base == 'of_wc_bmap_t':
+:: elif m.oftype.base == 'of_wc_bmap_t' and version in [1,2]:
q.text(util.pretty_wildcards(self.${m.name}))
:: elif m.oftype.base == 'of_port_no_t':
q.text(util.pretty_port(self.${m.name}))