Some chips can encrypt managment frames in HW, but
require generated IV in the frame. Add a key flag
that allows us to achieve this.
Signed-off-by: NMarek Kwaczynski <marek.kwaczynski@tieto.com>
[use BIT(0) to fill that spot, fix indentation]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>