dt-bindings: soc: rockchip: grf: add rk3576 CSI D-PHY GRF

The RK3576 has two GRF blocks for its Innosilicon CSI D-PHY instances,
analogous to the rk3588-csidphy-grf. Document the compatible so the
rk3576 camera pipeline nodes validate.

Signed-off-by: Jason Devers <dev.json2@gmail.com>

Author: hz2

Documentation/devicetree/bindings/soc/rockchip/grf.yaml

@@ -32,6 +32,7 @@ properties:
               - rockchip,rk3568-usb2phy-grf
               - rockchip,rk3576-bigcore-grf
               - rockchip,rk3576-cci-grf
+              - rockchip,rk3576-csidphy-grf
               - rockchip,rk3576-dcphy-grf
               - rockchip,rk3576-gpu-grf
               - rockchip,rk3576-hdptxphy-grf