Workaround to p4c/BMv2 parser bug

Start parser is configured to switch on ingress_port value 0xff, while
BMv2 uses byte-aligned ingress_port value (9 bit -> 16 bits), i.e.
0x00ff.

Change-Id: I8c9ab36675e7048ca3182582a97a90cc366d2743

tools/test/p4src/p4-16/p4c-out/default.json

@@ -370,7 +370,7 @@
           "parser_ops" : [],
           "transitions" : [
             {
-              "value" : "0xff",
+              "value" : "0x00ff",
               "mask" : null,
               "next_state" : "parse_packet_out"
             },

tools/test/p4src/p4-16/p4c-out/empty.json

@@ -107,7 +107,7 @@
       "id" : 0,
       "source_info" : {
         "filename" : "empty.p4",
-        "line" : 44,
+        "line" : 60,
         "column" : 8,
         "source_fragment" : "DeparserImpl"
       },
@@ -145,7 +145,7 @@
           ],
           "source_info" : {
             "filename" : "empty.p4",
-            "line" : 23,
+            "line" : 39,
             "column" : 8,
             "source_fragment" : "meta.dummy_metadata.dummyField = 8w1"
           }
@@ -159,7 +159,7 @@
       "id" : 0,
       "source_info" : {
         "filename" : "empty.p4",
-        "line" : 21,
+        "line" : 37,
         "column" : 8,
         "source_fragment" : "ingress"
       },
@@ -170,7 +170,7 @@
           "id" : 0,
           "source_info" : {
             "filename" : "empty.p4",
-            "line" : 25,
+            "line" : 41,
             "column" : 10,
             "source_fragment" : "table0"
           },
@@ -210,7 +210,7 @@
       "id" : 1,
       "source_info" : {
         "filename" : "empty.p4",
-        "line" : 38,
+        "line" : 54,
         "column" : 8,
         "source_fragment" : "egress"
       },