Add systemd

This bb recipes are pulled from openembedded-core meta layer

Signed-off-by: Shivdas Gujare <shivdas.gujare@arputer.com>
Add systemd as init manager

Signed-off-by: Shivdas Gujare <shivdas.gujare@gmail.com>
Add autofs as required for systemd

Signed-off-by: Shivdas Gujare <shivdas.gujare@arputer.com>