VOL-2103 - Device reason update modifications

A new api is defined to update the reason attribute of Device in rw_core.

Change-Id: Icc4134498fc622d67d8e8b6f6d08f0968a8e9bd2
diff --git a/go.mod b/go.mod
index fa6a144..296baf4 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@
 	github.com/golang/protobuf v1.3.2
 	github.com/google/uuid v1.1.1
 	github.com/gyuho/goraph v0.0.0-20160328020532-d460590d53a9
-	github.com/opencord/voltha-lib-go v0.0.0-20191017201200-e73f91e306e9
+	github.com/opencord/voltha-lib-go v0.0.0-20191018190138-62f0709e8232
 	github.com/opencord/voltha-protos v1.0.3
 	github.com/stretchr/testify v1.4.0
 	google.golang.org/grpc v1.24.0