Remove Krzysztof Kozlowski from maintainers of Samsung SoC SPI drivers.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org
Link: https://lore.kernel.org/r/20230513173646.4306-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org