w1: matrox: use inline over __inline__

Switch to inline as preferred by coding style:

  WARNING: plain inline is preferred over __inline__

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230415104304.104134-11-krzysztof.kozlowski@linaro.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>