dt-bindings: net: dwmac: Add Rockchip DWMAC support

Add Rockchip DWMAC controllers, which are based on snps,dwmac.
Some of the SoCs require up to eight clocks, so maxItems
for clocks and clock-names need to be increased.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/snps,dwmac.yaml

@@ -56,6 +56,15 @@ properties:
         - amlogic,meson8m2-dwmac
         - amlogic,meson-gxbb-dwmac
         - amlogic,meson-axg-dwmac
+        - rockchip,px30-gmac
+        - rockchip,rk3128-gmac
+        - rockchip,rk3228-gmac
+        - rockchip,rk3288-gmac
+        - rockchip,rk3328-gmac
+        - rockchip,rk3366-gmac
+        - rockchip,rk3368-gmac
+        - rockchip,rk3399-gmac
+        - rockchip,rv1108-gmac
         - snps,dwmac
         - snps,dwmac-3.50a
         - snps,dwmac-3.610
@@ -89,7 +98,7 @@ properties:
 
   clocks:
     minItems: 1
-    maxItems: 5
+    maxItems: 8
     additionalItems: true
     items:
       - description: GMAC main clock
@@ -101,7 +110,7 @@ properties:
 
   clock-names:
     minItems: 1
-    maxItems: 5
+    maxItems: 8
     additionalItems: true
     contains:
       enum: