wifi-scripts: fix nested config accumulation in wdev_set_data

When storing device-level data, wdev_set_data() spread the entire wdev
object into handler_data. Since handler_config.data is set from the
previous handler_data[wdev.name] before each setup, this created
exponentially growing nesting with each reload, eventually causing
"nesting too deep" JSON parse errors.

Fix by initializing cur to a simple object containing only the device
name instead of the entire wdev object.

Signed-off-by: Felix Fietkau <[email protected]>

package/network/config/wifi-scripts/files/lib/netifd/wireless-device.uc

@@ -465,7 +465,7 @@ function wdev_mark_up(wdev)
 function wdev_set_data(wdev, vif, vlan, data)
 {
 	let config = wdev.handler_config;
-	let cur = wdev;
+	let cur = { name: wdev.name };
 	let cur_type = "device";
 	if (!config)
 		return ubus.STATUS_INVALID_ARGUMENT;