[VOL-4120] openonu-adapter-go: support command "voltctl device onuimage list <onu-id>"

Change-Id: If6bc1a94663c09881059b1f91d34944dccec52f3
diff --git a/VERSION b/VERSION
index 8c2e99f..e3d07d7 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.1-dev203
+1.3.1-dev204