hwmon: (vexpress) Use of_property_present()

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20240731191312.1710417-13-robh@kernel.orgSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/vexpress-hwmon.c

@@ -72,7 +72,7 @@ static umode_t vexpress_hwmon_attr_is_visible(struct kobject *kobj,
 				struct device_attribute, attr);
 
 	if (dev_attr->show == vexpress_hwmon_label_show &&
-			!of_get_property(dev->of_node, "label", NULL))
+			!of_property_present(dev->of_node, "label"))
 		return 0;
 
 	return attr->mode;