dt-bindings: arm: rockchip: Add Indiedroid Nova

Add Indiedroid Nova, an rk3588s based single board computer.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230531161220.280744-5-macroalpha82@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

Documentation/devicetree/bindings/arm/rockchip.yaml

@@ -546,6 +546,11 @@ properties:
           - const: hugsun,x99
           - const: rockchip,rk3399
 
+      - description: Indiedroid Nova SBC
+        items:
+          - const: indiedroid,nova
+          - const: rockchip,rk3588s
+
       - description: Khadas Edge series boards
         items:
           - enum: