With both sysvinit and systemd features it's possible to use systemd's udev with
sysvinit, so add the required init script.
(From OE-Core rev: b58a176936740e8e291f1e82229a8ca044bdb044)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>