hostapd: Allow HT40 on 5 GHz channels 173 and 177

IEEE Std 802.11ax-2021 added channel 177 into global operating class 125
and consequently channel 173 in global operating class 126 (HT40+) and
channel 177 in global operating class 127 (HT40-).

Signed-off-by: Cedric Izoard <cedric.izoard@ceva-dsp.com>

src/common/hw_features_common.c

@@ -114,7 +114,7 @@ int allowed_ht40_channel_pair(enum hostapd_hw_mode mode,
 {
 	int ok, first;
 	int allowed[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 140,
-			  149, 157, 165, 184, 192 };
+			  149, 157, 165, 173, 184, 192 };
 	size_t k;
 	int ht40_plus, pri_chan, sec_chan;