lxc-alpine: run bootmisc and syslog at boot runlevel

The bootmisc script is needed to clean up various temp dirs like /tmp
and migrate /var/run to /run if needed.

The syslog service is started in 'boot' runlevel when running on real
hardware so we do the same for containers.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
lxc-alpine: enable 4 consoles by default

We allow 4 consoles in the LXC config file so we can enable 4 in the
inittab as well.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>