Bump P4 tools to latest version

With support for P4Runtime multicast API

Change-Id: I6982c32187204b656a927d0f3d7f3a4b1b877e75
diff --git a/protocols/bmv2/thrift-api/BUCK b/protocols/bmv2/thrift-api/BUCK
index b1d766a..f9c90ff 100644
--- a/protocols/bmv2/thrift-api/BUCK
+++ b/protocols/bmv2/thrift-api/BUCK
@@ -4,7 +4,7 @@
 ]
 
 # BMV2_COMMIT should be set to the same value as specified in install-p4-tools.sh
-BMV2_COMMIT = 'ed130d01be985d814c17de949839d484e76400b1'
+BMV2_COMMIT = 'a3f0ebe4c0f10a656f8aa1ad68cb20402a62b0ee'
 BMV2_BASEURL = 'https://cdn.rawgit.com/p4lang/behavioral-model/' + BMV2_COMMIT
 BMV2_NAMESPACE = 'org.onosproject.bmv2.thriftapi'
 
@@ -99,4 +99,4 @@
 
 project_config(
     src_target = ':onos-protocols-bmv2-thrift-api'
-)
\ No newline at end of file
+)