veyron/services/mgmt/profile: Add flags.
veyron/services/mgmt/profile: Add flags.

Add flags to set the address and protocol to use, as well as the name to
publish in the mount table.

Change-Id: I90f4f3bd46d7caf33d17349a672011bbe66505be

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