mac80211: allow scans in access point mode (for site survey)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33613 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/mac80211/patches/310-ap_scan.patch

@@ -0,0 +1,11 @@
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -1796,8 +1796,6 @@ static int ieee80211_scan(struct wiphy *
+ 		 * beaconing hasn't been configured yet
+ 		 */
+ 	case NL80211_IFTYPE_AP:
+-		if (sdata->u.ap.beacon)
+-			return -EOPNOTSUPP;
+ 		break;
+ 	default:
+ 		return -EOPNOTSUPP;