Fixing packet_io and regenerating default.p4 for tofino

Change-Id: I5c2c6565f71a13b375a8ec8da864e9157b8e56ed
diff --git a/tools/test/p4src/p4-14/p4c-out/wcmp.p4info b/tools/test/p4src/p4-14/p4c-out/wcmp.p4info
index 9b12a53..848e9d5 100644
--- a/tools/test/p4src/p4-14/p4c-out/wcmp.p4info
+++ b/tools/test/p4src/p4-14/p4c-out/wcmp.p4info
@@ -207,7 +207,7 @@
   spec {
     unit: PACKETS
   }
-  size: 511
+  size: 254
 }
 counters {
   preamble {
@@ -219,7 +219,7 @@
   spec {
     unit: PACKETS
   }
-  size: 511
+  size: 254
 }
 direct_counters {
   preamble {
@@ -267,4 +267,4 @@
     name: "egress_port"
     bitwidth: 9
   }
-}
+}
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