spi: dt-bindings: Add rk3528-spi compatible

This adds a compatible string for the SPI controller on RK3528.

Signed-off-by: Chukun Pan <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: aiamadeus

Documentation/devicetree/bindings/spi/spi-rockchip.yaml

@@ -34,6 +34,7 @@ properties:
               - rockchip,rk3328-spi
               - rockchip,rk3368-spi
               - rockchip,rk3399-spi
+              - rockchip,rk3528-spi
               - rockchip,rk3562-spi
               - rockchip,rk3568-spi
               - rockchip,rk3576-spi