rtc: xgene: set range

CCVR is a 32bit second counter.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-xgene.c

@@ -205,6 +205,7 @@ static int xgene_rtc_probe(struct platform_device *pdev)
 	/* HW does not support update faster than 1 seconds */
 	pdata->rtc->uie_unsupported = 1;
 	pdata->rtc->ops = &xgene_rtc_ops;
+	pdata->rtc->range_max = U32_MAX;
 
 	ret = rtc_register_device(pdata->rtc);
 	if (ret) {