ONOS-7152 Buck build of gNMI auto-generated gRPC stubs

Change-Id: I214a1e28aaee456f2d48ddcda1af18619275e863
diff --git a/modules.defs b/modules.defs
index 22230cb..e00656c 100644
--- a/modules.defs
+++ b/modules.defs
@@ -235,6 +235,7 @@
 PROTOCOL_APPS = [
     '//protocols/grpc:onos-protocols-grpc-oar',
     '//protocols/p4runtime:onos-protocols-p4runtime-oar',
+    '//protocols/gnmi:onos-protocols-gnmi-oar',
 ]
 
 MODELS = [