[PATCH 10/17] bootwrapper: Add dt_set_mac_addresses().

[Timur Tabi]

David Gibson wrote:

> Well, that's part of why I'm contemplating this idea:  it makes it
> clear to the reader whether this dts is intended to be complete, or
> whether it's intended that the bootloader adjust things.

I would have no objection to a patch for DTC that makes it treat "?" 
like "0".  This would probably make everyone happy.