bump gRPC version to 1.2.0

- updated Protouf to 3.2.0, which gRPC 1.2.0 depend on

Change-Id: If63d468c867680c3e57a36a37ba878b1daeb69ae
diff --git a/incubator/grpc-dependencies/pom.xml b/incubator/grpc-dependencies/pom.xml
index 742c6ee..29802d4 100644
--- a/incubator/grpc-dependencies/pom.xml
+++ b/incubator/grpc-dependencies/pom.xml
@@ -30,10 +30,10 @@
     <packaging>pom</packaging>
 
     <properties>
-        <grpc.version>1.0.0</grpc.version>
-        <grpc.package.version>1.0.0</grpc.package.version>
-        <grpc.netty.version>4.1.3.Final</grpc.netty.version>
-        <grpc.netty.package.version>4.1.3</grpc.netty.package.version>
+        <grpc.version>1.2.0</grpc.version>
+        <grpc.package.version>1.2.0</grpc.package.version>
+        <grpc.netty.version>4.1.8.Final</grpc.netty.version>
+        <grpc.netty.package.version>4.1.8</grpc.netty.package.version>
         <google.auth.version>0.4.0</google.auth.version>
     </properties>
 
@@ -84,6 +84,12 @@
 
             <dependency>
                 <groupId>io.netty</groupId>
+                <artifactId>netty-resolver</artifactId>
+                <version>${grpc.netty.version}</version>
+            </dependency>
+
+            <dependency>
+                <groupId>io.netty</groupId>
                 <artifactId>netty-handler</artifactId>
                 <version>${grpc.netty.version}</version>
             </dependency>
diff --git a/incubator/protobuf-dependencies/pom.xml b/incubator/protobuf-dependencies/pom.xml
index 2feff8a..6f3a8ba 100644
--- a/incubator/protobuf-dependencies/pom.xml
+++ b/incubator/protobuf-dependencies/pom.xml
@@ -30,7 +30,7 @@
     <url>http://onosproject.org</url>
 
     <properties>
-        <protobuf.version>3.0.0</protobuf.version>
+        <protobuf.version>3.2.0</protobuf.version>
     </properties>
 
     <dependencies>