scripts: build-chromium: Set channel to stable

* Removes the unknown from chrome://version

Change-Id: Ie8b6e04977421e841a357480a92377f4a790f85c
1 file changed
tree: 9625cd12435f5e3aa55c334451396ca1e958e02e
  1. aosp-merger/
  2. build-chromium/
  3. lineage-merger/
  4. repo/