rtc: vr41xx: Wire up alarm_irq_enable

drivers/rtc/rtc-vr41xx.c:229: warning: ‘vr41xx_rtc_alarm_irq_enable’ defined but not used

Apparently the conversion to alarm_irq_enable forgot to wire up the
callback.

Fixes: 16380c15 ("RTC: Convert rtc drivers to use the alarm_irq_enable method")
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/rtc/rtc-vr41xx.c

@@ -278,6 +278,7 @@ static const struct rtc_class_ops vr41xx_rtc_ops = {
 	.set_time		= vr41xx_rtc_set_time,
 	.read_alarm		= vr41xx_rtc_read_alarm,
 	.set_alarm		= vr41xx_rtc_set_alarm,
+	.alarm_irq_enable	= vr41xx_rtc_alarm_irq_enable,
 };
 
 static int rtc_probe(struct platform_device *pdev)