dt-bindings: ata: rockchip-dwc-ahci: add RK3576 compatible

dt-bindings: ata: rockchip-dwc-ahci: add RK3576 compatible

The Rockchip RK3576 has two SATA controllers. They work the same as the
RK3568 SATA controllers, having the same number of clocks and ports.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20250424-rk3576-sata-v1-1-23ee89c939fe@collabora.com
Signed-off-by: Niklas Cassel <cassel@kernel.org>