VOL-2776 Start_omci_test is unimplemented for OLT

Change-Id: I334e5d4ca93ef5f86c46ca046499d6d95a7b36dd
diff --git a/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/iAdapter.go b/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/iAdapter.go
index fc57247..112fb94 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/iAdapter.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/iAdapter.go
@@ -52,4 +52,5 @@
 	Enable_port(deviceId string, port *voltha.Port) error
 	Disable_port(deviceId string, port *voltha.Port) error
 	Child_device_lost(parentDeviceId string, parentPortNo uint32, onuID uint32) error
+	Start_omci_test(device *voltha.Device, request *voltha.OmciTestRequest) (*voltha.TestResponse, error)
 }