Fixing packet_io and regenerating default.p4 for tofino

Change-Id: I5c2c6565f71a13b375a8ec8da864e9157b8e56ed
diff --git a/tools/test/p4src/p4-14/p4c-out/tofino/default/montara/logs/pa.liveness.log b/tools/test/p4src/p4-14/p4c-out/tofino/default/montara/logs/pa.liveness.log
index 490a414..35be00a 100644
--- a/tools/test/p4src/p4-14/p4c-out/tofino/default/montara/logs/pa.liveness.log
+++ b/tools/test/p4src/p4-14/p4c-out/tofino/default/montara/logs/pa.liveness.log
@@ -1,6 +1,6 @@
 +---------------------------------------------------------------------+
 |  Log file: pa.liveness.log                                          |
 |  Compiler version: 5.1.0 (fca32d1)                                  |
-|  Created on: Thu Sep  7 13:56:53 2017                               |
+|  Created on: Fri Sep  8 08:24:30 2017                               |
 +---------------------------------------------------------------------+