[VOL-4290] Voltha go library updates for gRPC migration

Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/vendor/github.com/Shopify/sarama/describe_groups_request.go b/vendor/github.com/Shopify/sarama/describe_groups_request.go
index 1fb3567..f8962da 100644
--- a/vendor/github.com/Shopify/sarama/describe_groups_request.go
+++ b/vendor/github.com/Shopify/sarama/describe_groups_request.go
@@ -21,6 +21,10 @@
 	return 0
 }
 
+func (r *DescribeGroupsRequest) headerVersion() int16 {
+	return 1
+}
+
 func (r *DescribeGroupsRequest) requiredVersion() KafkaVersion {
 	return V0_9_0_0
 }