Updated P4_16 sample programs to reflect HW testbed

Change-Id: I9d76c9bc7632760cd9af1a3a431856291903eaf9
diff --git a/tools/test/p4src/p4-16/wcmp.p4 b/tools/test/p4src/p4-16/wcmp.p4
index 419ba83..8123bfb 100644
--- a/tools/test/p4src/p4-16/wcmp.p4
+++ b/tools/test/p4src/p4-16/wcmp.p4
@@ -64,7 +64,7 @@
             set_egress_port(standard_metadata);
             wcmp_group;
             send_to_cpu(standard_metadata);
-            drop(standard_metadata);
+            _drop(standard_metadata);
         }
         key = {
             standard_metadata.ingress_port: ternary;
@@ -73,6 +73,7 @@
             hdr.ethernet.etherType        : ternary;
         }
         counters = table0_counter;
+        default_action = _drop(standard_metadata);
     }
 
     table wcmp_group_table {