668fb5a054
With the new oslo-privsep library, there is now a privsep-helper command that is used to escalate privledges. This command needs to be runnable by the neutron user via sudo without a password. The old rootwrap command is still used as well, so for now we need to have both. Change-Id: I8e9743da3e51e71a113d958c22007cf54aa17fc4