rtc: starfire: switch to rtc_time64_to_tm

Call the 64bit version of rtc_tm time conversion.

Link: https://lore.kernel.org/r/20200306005910.38939-2-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-starfire.c

@@ -27,7 +27,7 @@ static u32 starfire_get_time(void)
 
 static int starfire_read_time(struct device *dev, struct rtc_time *tm)
 {
-	rtc_time_to_tm(starfire_get_time(), tm);
+	rtc_time64_to_tm(starfire_get_time(), tm);
 	return 0;
 }