Add common & userns Devuan LXC configs

Signed-off-by: Tanya Degurechaff <34323200+TanyaEleventhGoddess@users.noreply.github.com>

config/devuan.common.conf.in

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+# This derives from the global common config
+lxc.include = @LXCTEMPLATECONFIG@/common.conf
+
+# Doesn't support consoles in /dev/lxc/
+lxc.tty.dir =
+
+# When using LXC with apparmor, the container will be confined by default.
+# If you wish for it to instead run unconfined, copy the following line
+# (uncommented) to the container's configuration file.
+#lxc.apparmor.profile = unconfined
+
+# If you wish to allow mounting block filesystems, then use the following
+# line instead, and make sure to grant access to the block device and/or loop
+# devices below in lxc.cgroup.devices.allow.
+#lxc.apparmor.profile = lxc-container-default-with-mounting
+
+# Extra cgroup device access
+## rtc
+lxc.cgroup.devices.allow = c 254:0 rm
+## tun
+lxc.cgroup.devices.allow = c 10:200 rwm
+## hpet
+lxc.cgroup.devices.allow = c 10:228 rwm
+## kvm
+lxc.cgroup.devices.allow = c 10:232 rwm
+## To use loop devices, copy the following line to the container's
+## configuration file (uncommented).
+#lxc.cgroup.devices.allow = b 7:* rwm

config/devuan.userns.conf.in

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+# This derives from the global userns config
+lxc.include = @LXCTEMPLATECONFIG@/userns.conf