In case the user specified

lxc.console = none
lxc.devttydir = bla
lxc.mount.entry = /dev/console dev/console none bind,create=file 0 0

move the mount under /dev/bla/console

If he requested a mknod()ed /dev/console rename it to /dev/bla/console.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>