rtc: ds1343: set range

This is a standard BCD rtc with a useless century bit (no leap year
correction after 2099).

Link: https://lore.kernel.org/r/20191019204941.6203-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-ds1343.c

@@ -520,6 +520,8 @@ static int ds1343_probe(struct spi_device *spi)
 
 	priv->rtc->nvram_old_abi = true;
 	priv->rtc->ops = &ds1343_rtc_ops;
+	priv->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+	priv->rtc->range_max = RTC_TIMESTAMP_END_2099;
 
 	res = rtc_register_device(priv->rtc);
 	if (res)