Fixing golang linters for VGC

Change-Id: I386d232c74ab47e24d92c18800dc144120b920da
diff --git a/internal/pkg/vpagent/packetIn.go b/internal/pkg/vpagent/packetIn.go
index 33a63b4..a0209f2 100644
--- a/internal/pkg/vpagent/packetIn.go
+++ b/internal/pkg/vpagent/packetIn.go
@@ -19,8 +19,9 @@
 	"context"
 	"io"
 
-	"github.com/golang/protobuf/ptypes/empty"
 	"voltha-go-controller/log"
+
+	"github.com/golang/protobuf/ptypes/empty"
 	"google.golang.org/grpc"
 )