pom fix around gNMI

Change-Id: I6cd5190e7a9daa3d9050893d7b6195a01e549090
diff --git a/protocols/grpc/pom.xml b/protocols/grpc/pom.xml
index 13e2326..4b88ad5 100644
--- a/protocols/grpc/pom.xml
+++ b/protocols/grpc/pom.xml
@@ -25,7 +25,7 @@
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>onos-grpc-protocol</artifactId>
+    <artifactId>onos-protocols-grpc</artifactId>
 
     <modules>
         <module>api</module>