dt-bindings: power: rockchip: Document RV1126 power-controller

Document dt-bindings for RV1126 power-controller.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Link: https://lore.kernel.org/r/20220818124132.125304-3-jagan@edgeble.aiSigned-off-by: Heiko Stuebner <heiko@sntech.de>

Documentation/devicetree/bindings/power/rockchip,power-controller.yaml

@@ -41,6 +41,7 @@ properties:
       - rockchip,rk3368-power-controller
       - rockchip,rk3399-power-controller
       - rockchip,rk3568-power-controller
+      - rockchip,rv1126-power-controller
 
   "#power-domain-cells":
     const: 1
@@ -119,6 +120,7 @@ $defs:
           "include/dt-bindings/power/rk3368-power.h"
           "include/dt-bindings/power/rk3399-power.h"
           "include/dt-bindings/power/rk3568-power.h"
+          "include/dt-bindings/power/rockchip,rv1126-power.h"
 
       clocks:
         minItems: 1