[qca-nss-ecm] Defunct the connections when netdevice goes down.

Instead of regenerating the connections, defunct them
when the interface goes down.

Change-Id: I9adf682cf2a4793980a48e49ee4e0d70008aca90
Signed-off-by: Murat Sezgin <msezgin@codeaurora.org>
1 file changed