dt-bindings: hwmon: tmp102: Add label property

dt-bindings: hwmon: tmp102: Add label property

Add support for an optional label property similar to other hwmon devices.
This allows, in case of boards with multiple TMP102 sensors, to assign
distinct names to each instance.

Signed-off-by: Flaviu Nistor <flaviu.nistor@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250825180248.1943607-1-flaviu.nistor@gmail.com
[groeck: Dropped unnecessary "|" after "description:"]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>