rtc: 88pm860x: remove artificial limitation

The 88pm860x supports time up to 2106 (it is a 32 bit counter). Also, the
year will never be before 1970 as the RTC core forbids that.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-88pm860x.c

@@ -135,9 +135,9 @@ static int pm860x_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[4];
 	unsigned long ticks, base, data;
 
-	if ((tm->tm_year < 70) || (tm->tm_year > 138)) {
+	if (tm->tm_year > 206) {
 		dev_dbg(info->dev, "Set time %d out of range. "
-			"Please set time between 1970 to 2038.\n",
+			"Please set time between 1970 to 2106.\n",
 			1900 + tm->tm_year);
 		return -EINVAL;
 	}