dt-bindings: ufs: exynos-ufs: add exynosautov9 compatible

dt-bindings: ufs: exynos-ufs: add exynosautov9 compatible

Below two compatibles can be used for exynosautov9 SoC UFS controller.

- samsung,exynosautov9-ufs: ExynosAutov9 UFS Physical Host
- samsung,exynosautov9-ufs-vh: ExynosAutov9 UFS Virtual Host

Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211018124216.153072-16-chanho61.park@samsung.com