When exiting a DPDK application, the TAP remote was left
with the link down even if it was initially up.
The device flags of the remote netdevice are saved when probing,
and restored when calling the close function.
The remote state is not set down when calling the stop function anymore.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Pascal Mazon <pascal.mazon@6wind.com>
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