tests: Add lxc-test-usernic to the dist tarball

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
bdev_copy segfaults if bdevtype is NULL

Signed-off-by: S.Çağlar Onur <caglar@10ur.org>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
lxc-alpine: add hwaddr for a single macvlan interface

We already add harware address for a single veth interface. Do the same
with a single macvlan interface.

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