Add device tree documentation for rk3562-evb2-v10.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---

Changes in v5: None
Changes in v4: None
Changes in v3:
- Collect the Acked-by tag

Changes in v2:
- Update in sort order

 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 455fbb290b77..3372aff63e4d 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -1057,6 +1057,11 @@ properties:
           - const: rockchip,rk3399-sapphire-excavator
           - const: rockchip,rk3399
 
+      - description: Rockchip RK3562 Evaluation board 2
+        items:
+          - const: rockchip,rk3562-evb2-v10
+          - const: rockchip,rk3562
+
       - description: Rockchip RK3566 BOX Evaluation Demo board
         items:
           - const: rockchip,rk3566-box-demo
-- 
2.25.1