hostapd: fix wep with netifd

Signed-off-by: Catalin Patulea <cat@vv.carleton.ca>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39156 3c298f89-4303-0410-b956-a3cf2f4a3e73
Merge remote-tracking branch 'upstream/master' into barrier-breaker_13.12