[VOL-4663] create voltha event topic (voltha.events) with conifgurable no of partitions and replication factor

Change-Id: I9949f9087c455c9976dad4b1e63be740bb58715f
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/kafka/client.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/kafka/client.go
index fdc05bc..afc2955 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/kafka/client.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/kafka/client.go
@@ -77,4 +77,5 @@
 	SendLiveness(ctx context.Context) error
 	EnableLivenessChannel(ctx context.Context, enable bool) chan bool
 	EnableHealthinessChannel(ctx context.Context, enable bool) chan bool
+	ListTopics(ctx context.Context) ([]string, error)
 }