[VOL-4277] onu-adapter should change device's operational-state to FAILED if EnableDevice fails in adapter

Change-Id: I4795a662ccf3d01c3d29a846c984947dda0a7654
diff --git a/internal/pkg/onuadaptercore/onu_device_entry.go b/internal/pkg/onuadaptercore/onu_device_entry.go
index 64929d5..e7fc201 100644
--- a/internal/pkg/onuadaptercore/onu_device_entry.go
+++ b/internal/pkg/onuadaptercore/onu_device_entry.go
@@ -139,6 +139,8 @@
 	UniDisableStateDone
 	// UniEnableStateDone - Uni ports admin set to unlock based on device re-enable
 	UniEnableStateDone
+	// UniEnableStateFailed - Uni ports admin set to unlock failure based on device re-enable
+	UniEnableStateFailed
 	// PortLinkUp - Port link state change
 	PortLinkUp
 	// PortLinkDw - Port link state change