rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time()

pcf8563_rtc_set_alarm() uses deprecated rtc_tm_to_time()
and rtc_time_to_tm(), which will overflow in year 2106
on 32-bit machines.

This patch solves this by:
 - Replacing rtc_time_to_tm() with rtc_time64_to_tm()
 - Replacing rtc_tm_to_time() with rtc_tm_to_time64()
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/rtc/rtc-pcf8563.c

@@ -358,13 +358,13 @@ static int pcf8563_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *tm)
 	struct i2c_client *client = to_i2c_client(dev);
 	unsigned char buf[4];
 	int err;
-	unsigned long alarm_time;
 
 	/* The alarm has no seconds, round up to nearest minute */
 	if (tm->time.tm_sec) {
-		rtc_tm_to_time(&tm->time, &alarm_time);
-		alarm_time += 60-tm->time.tm_sec;
-		rtc_time_to_tm(alarm_time, &tm->time);
+		time64_t alarm_time = rtc_tm_to_time64(&tm->time);
+
+		alarm_time += 60 - tm->time.tm_sec;
+		rtc_time64_to_tm(alarm_time, &tm->time);
 	}
 
 	dev_dbg(dev, "%s, min=%d hour=%d wday=%d mday=%d "