ARM: dts: exynos: add function and color to aat1290 flash LED node in Galaxy S3

Add common LED properties - the function and color - to aat1290 flash
LED node in Galaxy S3, so we can drop deprecated label property.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220620175033.130468-4-krzysztof.kozlowski@linaro.org


Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>