spi: dt-bindings: Add rk3562 support

Add rockchip,rk3562-spi compatible for rk3562.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20250227111913.2344207-8-kever.yang@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: keveryang

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

@@ -34,6 +34,7 @@ properties:
               - rockchip,rk3328-spi
               - rockchip,rk3368-spi
               - rockchip,rk3399-spi
+              - rockchip,rk3562-spi
               - rockchip,rk3568-spi
               - rockchip,rk3576-spi
               - rockchip,rk3588-spi