dt-bindings: arm: rockchip: Add Radxa E52C

Add devicetree binding for the Radxa E52C.

Radxa E52C is a compact network computer based on the Rockchip RK3582
SoC.

Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: FUKAUMI Naoki <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

Author: RadxaNaoki

Documentation/devicetree/bindings/arm/rockchip.yaml

@@ -828,6 +828,12 @@ properties:
           - const: radxa,e20c
           - const: rockchip,rk3528
 
+      - description: Radxa E52C
+        items:
+          - const: radxa,e52c
+          - const: rockchip,rk3582
+          - const: rockchip,rk3588s
+
       - description: Radxa Rock
         items:
           - const: radxa,rock