AIUI, LXC containers share the same kernel still - see Oracle documentation on LXC

In that case your now looking at patching host kernel to enable Android, which I dare say is going to break a few things a long the way. If that's the case I'd start looking at a Sailfish approach by running libhybris, if only for the possibility of detaching MCE and co from N900 specifics to allow porting to other devices. Problem is how much RAM and performance loss your going to see.