macintosh/ams: 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strict_strtoul() is obsolete.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: Benjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/macintosh/ams/ams-input.c

@@ -118,8 +118,12 @@ static ssize_t ams_input_store_joystick(struct device *dev,
 {
 	unsigned long enable;
 	int error = 0;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &enable) || enable > 1)
+	ret = kstrtoul(buf, 0, &enable);
+	if (ret)
+		return ret;
+	if (enable > 1)
 		return -EINVAL;
 
 	mutex_lock(&ams_input_mutex);