[VOL-4021] voltctl changes for ONU SW upgrade, new Download, Activate, Retrieve APIs

Change-Id: Icda7bac9dc4d2c1c73d91d9bfd0ef3144208681c
diff --git a/go.sum b/go.sum
index d7d98f8..16e805f 100644
--- a/go.sum
+++ b/go.sum
@@ -158,11 +158,10 @@
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