devices: allow link state down with netlink
devices: allow link state down with netlink

Type: fix

Use the up parameter in vnet_netlink_set_link_state(). It was
ignoring the parameter and always setting IFF_UP on an interface.

Change-Id: I0d44406d982afbdc43bc6b26d0f22c0bdd47abdc
Signed-off-by: Matthew Smith <52a1745bd9fd6c0a26d8c7252aafb349bbdbd656@netgate.com>

FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp