LXC requires at least linux kernel 3.14 to be secure.
I don't know if someone manage to port specific N900 code to this kernel version, but if not, there is no way to have LXC for maemo.

Any way, to stay on topic, and, as it has certainly already been said above (did not check), a chroot, more over a super chroot such as LXC, is not a solution to run Android, since the point of a chrooted system is to use the host kernel with the user environment of the guest.
And as far as I know, Android kernel features are not integrated in the linux kernel yet.

So, that makes two reasons why LXC won't be a solution for android, at least for now