backport of r46737

Add CONFIG_IEEE80211W variable to DRIVER_MAKEOPTS so that 802.11w
support is properly compiled in full variant.

This fixes #20179
Signed-off-by: Janusz Dziemidowicz <rraptorr@nails.eu.org>


git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46751 3c298f89-4303-0410-b956-a3cf2f4a3e73