wifi-scripts: reset the retry counter on successful setup

retry was only reset on config change/start, never on a successful setup,
so occasional transient setup failures accumulated over a device lifetime
and latched retry_setup_failed after three cumulative failures. Reset it
when the device comes up.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -459,6 +459,8 @@ function wdev_mark_up(wdev)
 		return 0;
 	}
 
+	wdev_reset(wdev);
+
 	for (let section, data in wdev.handler_data) {
 		if (data.ifname)
 			handle_link(data.ifname, data, true);