dt-bindings: PCI: dwc: rockchip: Add rk3562 support

rk3562 is using the same dwc controller as rk3576.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250415051855.59740-2-kever.yang@rock-chips.com

Author: keveryang

Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml

@@ -22,6 +22,7 @@ properties:
       - const: rockchip,rk3568-pcie
       - items:
           - enum:
+              - rockchip,rk3562-pcie
               - rockchip,rk3576-pcie
               - rockchip,rk3588-pcie
           - const: rockchip,rk3568-pcie
@@ -76,7 +77,9 @@ allOf:
         properties:
           compatible:
             contains:
-              const: rockchip,rk3576-pcie
+              enum:
+                - rockchip,rk3562-pcie
+                - rockchip,rk3576-pcie
     then:
       required:
         - msi-map
@@ -85,7 +88,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: rockchip,rk3576-pcie
+            enum:
+              - rockchip,rk3562-pcie
+              - rockchip,rk3576-pcie
     then:
       properties:
         interrupts: