mac80211: 802.11w - WEXT parameter for setting mgmt cipher

Add a new IW_AUTH parameter for setting cipher suite for
multicast/broadcast management frames. This is for full-mac drivers
that take care of RSN IE generation for (re)association request frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 1e5b29b..c3b2dd5 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -927,6 +927,7 @@
 	case IW_AUTH_WPA_ENABLED:
 	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
 	case IW_AUTH_KEY_MGMT:
+	case IW_AUTH_CIPHER_GROUP_MGMT:
 		break;
 	case IW_AUTH_CIPHER_PAIRWISE:
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {