spi: s3c64xx: define exynosautov9 compatible

Define "samsung,exynosautov9-spi" for Exynos Auto v9's spi.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20220629102304.65712-4-chanho61.park@samsung.com


Signed-off-by: Mark Brown <broonie@kernel.org>