mac80211: add kernel 4.1 support again

The new version now works with kernel 4.1

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46204 3c298f89-4303-0410-b956-a3cf2f4a3e73