wifi-scripts: fix encryption setting of default OpenWrt SSID

Commit 01a87f4bd0cdbfc84bbc172920e865c1600f7a45 changed the encryption
setting of the default SSID "OpenWrt" from "none" to "open". The correct
setting as per the documentation [1] is "none", though.
While this invalid setting won't cause a wrong hostapd setup, it will
at least cause malfunction in LuCI.

Change the default encryption setting back to "none".

[1] https://openwrt.org/docs/guide-user/network/wifi/basic#encryption_modes

Fixes: 01a87f4bd0cdbfc84bbc172920e865c1600f7a45
Signed-off-by: Shine <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/21925
Signed-off-by: Hauke Mehrtens <[email protected]>

package/network/config/wifi-scripts/files/lib/wifi/mac80211.uc

@@ -83,7 +83,7 @@ for (let phy_name, phy in board.wlan) {
 			country = '00';
 			encryption = 'owe';
 		} else {
-			encryption = 'open';
+			encryption = 'none';
 		}
 		if (board.wlan.defaults) {
 			defaults = board.wlan.defaults.ssids?.[band_name]?.ssid ? board.wlan.defaults.ssids?.[band_name] : board.wlan.defaults.ssids?.all;