ip list can return devices in the form tapX@NONE. If it does so,
ensure we handle that case correctly. Newer distros appear to do
this in some cases.
[YOCTO #8129]
(From OE-Core master rev: 6459dde380febce24d2c355d441d9cb3b14409b9)
(From OE-Core rev: a6709ac54bb9ac79692c3c6faadaace11b8f33f4)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Joshua Lock <joshua.lock@collabora.co.uk>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>