dt-bindings: clock: rockchip,rk3588-cru: drop unneeded assigned-clocks

assigned-clocks property is redundant, because core dtschema allows them
if clocks are provided.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Conor Dooley <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Stuebner <[e-mail]>

Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml

···
       - const: xin24m
       - const: xin32k
 
-  assigned-clocks: true
-
-  assigned-clock-rates: true
-
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: >