systemd-conf: add version info in recipe name

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-core/systemd/systemd-conf.bb b/meta/recipes-core/systemd/systemd-conf_241.bb
similarity index 100%
rename from meta/recipes-core/systemd/systemd-conf.bb
rename to meta/recipes-core/systemd/systemd-conf_241.bb