mac80211: fix delayed ADDBA response

Block frame processing during scan might delay the
ADDBA response, which eventually timeouts and
significantly reduces the device throughput.
Remove this constrain as it's not required for the
HW scan.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>

net/mac80211/iface.c

@@ -1125,7 +1125,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	if (local->scanning)
+	if (local->scanning && !local->ops->hw_scan)
 		return;
 
 	/*