iw: fix parsing of WEP keys
The current iw4.14 has a fatal bug that could casue a Segmentation fault
when parsing WEP keys. The issue has been fixed by upstream.
[https://git.kernel.org/pub/scm/linux/kernel/git/jberg/iw.git/commit/?id=
0e39f109c4b8155697a12ef090b59cdb304c8c44]
(From OE-Core rev:
6de9eb72f679dd8d8e4de972b1da978522cff8b4)
Signed-off-by: Liu Haitao <haitao.liu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
