VOL-2138 Use v2 import paths for voltha-lib-go;
migrate from voltha-go to voltha-lib-go

Change-Id: I3db6759f3c0cea3c2164889b3d36eae708b19bde
diff --git a/go.mod b/go.mod
index 38ab5e8..5d8c106 100644
--- a/go.mod
+++ b/go.mod
@@ -3,34 +3,20 @@
 go 1.12
 
 require (
-	github.com/Shopify/sarama v1.21.0 // indirect
-	github.com/bsm/sarama-cluster v2.1.15+incompatible // indirect
-	github.com/gogo/protobuf v1.2.1 // indirect
-	github.com/golang/protobuf v1.3.1
-	github.com/golang/snappy v0.0.1 // indirect
+	github.com/golang/protobuf v1.3.2
 	github.com/google/uuid v1.1.1
 	github.com/googleapis/gnostic v0.2.0 // indirect
 	github.com/imdario/mergo v0.3.7 // indirect
-	github.com/json-iterator/go v1.1.6 // indirect
 	github.com/onsi/ginkgo v1.10.2 // indirect
 	github.com/onsi/gomega v1.7.0 // indirect
-	github.com/opencord/voltha-go v2.2.0+incompatible
+	github.com/opencord/voltha-lib-go/v2 v2.2.7
 	github.com/opencord/voltha-protos v1.0.3
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
-	github.com/pkg/errors v0.8.1 // indirect
-	github.com/spf13/pflag v1.0.3 // indirect
-	github.com/stretchr/testify v1.3.0
-	go.uber.org/atomic v1.3.2 // indirect
-	go.uber.org/multierr v1.1.0 // indirect
-	go.uber.org/zap v1.9.1 // indirect
-	golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576 // indirect
-	golang.org/x/net v0.0.0-20190322120337-addf6b3196f6
-	golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc // indirect
+	github.com/stretchr/testify v1.4.0
+	golang.org/x/net v0.0.0-20190930134127-c5a3c61f89f3
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
-	google.golang.org/genproto v0.0.0-20190321212433-e79c0c59cdb5 // indirect
-	google.golang.org/grpc v1.19.1
+	google.golang.org/grpc v1.24.0
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/yaml.v2 v2.2.2 // indirect
 	k8s.io/api v0.0.0-20190620084959-7cf5895f2711
 	k8s.io/apimachinery v0.0.0-20190612205821-1799e75a0719
 	k8s.io/client-go v0.0.0-20190620085101-78d2af792bab // pseudo version corresponding to v12.0.0