mfd: tps80031: Use DEFINE_RES_IRQ() to simplify code

No functional change.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/tps80031.c

@@ -35,11 +35,7 @@
 #include <linux/slab.h>
 
 static const struct resource tps80031_rtc_resources[] = {
-	{
-		.start = TPS80031_INT_RTC_ALARM,
-		.end = TPS80031_INT_RTC_ALARM,
-		.flags = IORESOURCE_IRQ,
-	},
+	DEFINE_RES_IRQ(TPS80031_INT_RTC_ALARM),
 };
 
 /* TPS80031 sub mfd devices */