hwmon: (xgene) Drop bogus __refdata annotation

As the X-Gene hardware monitoring driver does not have any code or data
located in initmem, there is no need to annotate the xgene_hwmon_driver
structure with __refdata.  Drop the annotation, to avoid suppressing
future section warnings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201211133531.2970027-1-geert+renesas@glider.beSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/xgene-hwmon.c

@@ -784,7 +784,7 @@ static const struct of_device_id xgene_hwmon_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, xgene_hwmon_of_match);
 
-static struct platform_driver xgene_hwmon_driver __refdata = {
+static struct platform_driver xgene_hwmon_driver = {
 	.probe = xgene_hwmon_probe,
 	.remove = xgene_hwmon_remove,
 	.driver = {