libaio: update to 0.3.110, bump copyright, add license

Signed-off-by: Steven Barth <steven@midlink.org>
dbus: update to 1.9.4

Signed-off-by: Steven Barth <steven@midlink.org>
dbus: fix musl build

Signed-off-by: Steven Barth <steven@midlink.org>
mdnsresponder: update to 561.1.1

Signed-off-by: Steven Barth <steven@midlink.org>