rt2x00: Fix RFKILL polling

The rfkill_poll callback function in the drivers check a bit
to see if the RFKILL key has been pressed. However when the
bit is set it means the radio is active and the device can be
used.

The wiphy_rfkill_set_hw_state() function expects the inversed,
so '1' must be send when the radio must be disabled.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00mac.c

@@ -704,8 +704,8 @@ EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx);
 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
-	bool blocked = !!rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
+	bool active = !!rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
 
-	wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
+	wiphy_rfkill_set_hw_state(hw->wiphy, !active);
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll);