veyron/lib/modules: make sure the implementation of start uses envelope.
veyron/lib/modules: make sure the implementation of start uses envelope.

Change-Id: I33b59353b7136b3e1f68abff3da0558d3d2d07b8

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref