wl12xx: send testmode reply in wl1271_tm_cmd_interrogate

wl1271_tm_cmd_interrogate creates a reply skb, but doesn't
send it (and thus just leaks it).
Add the missing cfg80211_testmode_reply() call.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/testmode.c

@@ -176,6 +176,9 @@ static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[])
 	}
 
 	NLA_PUT(skb, WL1271_TM_ATTR_DATA, sizeof(*cmd), cmd);
+	ret = cfg80211_testmode_reply(skb);
+	if (ret < 0)
+		goto out_free;
 
 out_free:
 	kfree(cmd);