iio: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/adc/max1363.c

@@ -660,7 +660,7 @@ static ssize_t max1363_monitor_store_freq(struct device *dev,
 	unsigned long val;
 	bool found = false;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		return -EINVAL;
 	for (i = 0; i < ARRAY_SIZE(max1363_monitor_speeds); i++)

drivers/iio/trigger/iio-trig-sysfs.c

@@ -34,7 +34,7 @@ static ssize_t iio_sysfs_trig_add(struct device *dev,
 	int ret;
 	unsigned long input;
 
-	ret = strict_strtoul(buf, 10, &input);
+	ret = kstrtoul(buf, 10, &input);
 	if (ret)
 		return ret;
 	ret = iio_sysfs_trigger_probe(input);
@@ -53,7 +53,7 @@ static ssize_t iio_sysfs_trig_remove(struct device *dev,
 	int ret;
 	unsigned long input;
 
-	ret = strict_strtoul(buf, 10, &input);
+	ret = kstrtoul(buf, 10, &input);
 	if (ret)
 		return ret;
 	ret = iio_sysfs_trigger_remove(input);