mac80211: Fix setting radio htmode when using mesh mode

When configuring the radio in legacy mode from luci, the htmode is not set
correctly to NOHT, causing the radio in mesh mode to be set to HT40.

Signed-off-by: Enrique Rodríguez Valencia <enrique.rodriguez@galgus.net>

package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh

@@ -782,6 +782,7 @@ mac80211_setup_vif() {
 	case "$mode" in
 		mesh)
 			wireless_vif_parse_encryption
+			[ -z "$htmode" ] && htmode="NOHT";
 			freq="$(get_freq "$phy" "$channel")"
 			if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 				mac80211_setup_supplicant $vif_enable || failed=1