[VOL-2356]core log_level command line argument should take log level names not int value

Change-Id: Ifc9ca5aa6d2b40e068e0ecad845a788edad0a3a1
diff --git a/go.mod b/go.mod
index 10d32db..ef050dc 100644
--- a/go.mod
+++ b/go.mod
@@ -6,8 +6,8 @@
 	github.com/gogo/protobuf v1.3.0
 	github.com/golang/protobuf v1.3.2
 	github.com/google/uuid v1.1.1
-	github.com/opencord/voltha-lib-go/v3 v3.0.7
-	github.com/opencord/voltha-protos/v3 v3.2.2
+	github.com/opencord/voltha-lib-go/v3 v3.0.12
+	github.com/opencord/voltha-protos/v3 v3.2.3
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/stretchr/testify v1.4.0
 	google.golang.org/grpc v1.24.0