p54: implement rfkill

This patch implements a basic rfkill support for p54 hardware and
removes a rfkill related WARNING:

fwio.c: In function ‘p54_setup_mac’:
fwio.c:323: warning: ‘radio_enabled’ is deprecated.

by abandoning radio_enable in flavour for IEEE80211_CONF_CHANGE_IDLE.

Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index 704685f..6fc0b61 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -552,6 +552,12 @@
 		break;
 	case P54_TRAP_TIMER:
 		break;
+	case P54_TRAP_FAA_RADIO_OFF:
+		wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
+		break;
+	case P54_TRAP_FAA_RADIO_ON:
+		wiphy_rfkill_set_hw_state(priv->hw->wiphy, false);
+		break;
 	default:
 		printk(KERN_INFO "%s: received event:%x freq:%d\n",
 		       wiphy_name(priv->hw->wiphy), event, freq);