rtc: m41t62: fix wrong register use for set/reset ST bit

Fix wrong register use when set/reset ST bit.
ST bit is in register M41T62_REG_SEC not in M41T62_REG_ALARM_HOUR.

I have not actually tested this. But this seemed buggy from inspection.

Fixes: 9bbe2105 ("rtc: m41t62: add oscillator fail bit reset support")
Signed-off-by: NMax Yang <max.yang@deltaww.com>

drivers/rtc/m41t62.c

@@ -213,13 +213,13 @@ static int m41t62_rtc_restart_osc(struct udevice *dev)
 
 	/* 1. Set stop bit */
 	val |= M41T62_SEC_ST;
-	ret = dm_i2c_write(dev, M41T62_REG_ALARM_HOUR, &val, sizeof(val));
+	ret = dm_i2c_write(dev, M41T62_REG_SEC, &val, sizeof(val));
 	if (ret)
 		return ret;
 
 	/* 2. Clear stop bit */
 	val &= ~M41T62_SEC_ST;
-	ret = dm_i2c_write(dev, M41T62_REG_ALARM_HOUR, &val, sizeof(val));
+	ret = dm_i2c_write(dev, M41T62_REG_SEC, &val, sizeof(val));
 	if (ret)
 		return ret;