[ONOS-7311] and [ONOS-7197] Update ONOS to support most recent version of BMv2 and PI

Change-Id: Ie69cfe1946f3c9241dc7f59a64bd40005a063931
diff --git a/protocols/p4runtime/model/BUCK b/protocols/p4runtime/model/BUCK
index 68442dc..86c44c4 100644
--- a/protocols/p4runtime/model/BUCK
+++ b/protocols/p4runtime/model/BUCK
@@ -1,4 +1,4 @@
-PROTOBUF_VER = '3.0.2'
+PROTOBUF_VER = '3.2.0'
 
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',