dt-bindings: clock: exynosautov9: add schema for cmu_fsys0/1

Add "samsung,exynosautov9-cmu-fsys0/1" compatibles to illustrate
cmu_fsys0 and fsys1 for Exynos Auto v9 SoC.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/49eaadecfb346982dff46cffb870400b76a4e281.1659054220.git.chanho61.park@samsung.com