vrf: T3344: set explicit priority values for routing protocols
vrf: T3344: set explicit priority values for routing protocols

We must ensure that an interface is already added to a VRF before it is
referenced inside a VRF context, e.g. OSPF.

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x