zd1211rw: enable support for MFP

zd1211rw lacks hardware encryption, so enabling 802.11w is only matter of
enabling IEEE80211_HW_MFP_CAPABLE flag.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/zd1211rw/zd_mac.c

@@ -1401,7 +1401,8 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
 
 	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 		    IEEE80211_HW_SIGNAL_UNSPEC |
-		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
+		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		    IEEE80211_HW_MFP_CAPABLE;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_MESH_POINT) |