iw uses cfg80211/nl80211, which is the way of the future. wireless-tools uses
WEXT, which uses ioctl, which is in deep maintenance mode. See
http://wireless.kernel.org/en/developers/Documentation/Wireless-Extensions.
Also https://wireless.wiki.kernel.org/en/users/Documentation/iw indicates "The
old tool iwconfing, which uses Wireless Extensions interface, is deprecated
and it's strongly recommended to switch to iw and nl80211."
Signed-off-by: Christopher Larson <chris_larson@mentor.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>