gpio: shared-proxy: set suppress_bind_attrs

User-space must not fiddle with shared-proxy auxiliary devices. Disable
bind/unbind attributes in sysfs.

Link: https://lore.kernel.org/r/20251126191730.66277-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: Bartosz Golaszewski

drivers/gpio/gpio-shared-proxy.c

@@ -322,6 +322,7 @@ MODULE_DEVICE_TABLE(auxiliary, gpio_shared_proxy_id_table);
 static struct auxiliary_driver gpio_shared_proxy_driver = {
 	.driver = {
 		.name = "gpio-shared-proxy",
+		.suppress_bind_attrs = true,
 	},
 	.probe = gpio_shared_proxy_probe,
 	.id_table = gpio_shared_proxy_id_table,