net: rfkill: gpio: Enable module auto-loading for ACPI based switches

For the ACPI based switches the MODULE_DEVICE_TABLE is missing to
export the entries for module auto-loading.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/rfkill/rfkill-gpio.c

@@ -163,6 +163,7 @@ static const struct acpi_device_id rfkill_acpi_match[] = {
 	{ "LNV4752", RFKILL_TYPE_GPS },
 	{ },
 };
+MODULE_DEVICE_TABLE(acpi, rfkill_acpi_match);
 #endif
 
 static struct platform_driver rfkill_gpio_driver = {