dt-bindings: dma: sun50i-a64: Add compatible for D1

D1 has a DMA controller similar to the one in other Allwinner SoCs.
Add its compatible, and include it in the list of variants with a
separate MBUS clock gate.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Samuel Holland <samuel@sholland.org>

Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml

@@ -20,9 +20,11 @@ properties:
 
   compatible:
     oneOf:
-      - const: allwinner,sun50i-a64-dma
-      - const: allwinner,sun50i-a100-dma
-      - const: allwinner,sun50i-h6-dma
+      - enum:
+          - allwinner,sun20i-d1-dma
+          - allwinner,sun50i-a64-dma
+          - allwinner,sun50i-a100-dma
+          - allwinner,sun50i-h6-dma
       - items:
           - const: allwinner,sun8i-r40-dma
           - const: allwinner,sun50i-a64-dma
@@ -58,6 +60,7 @@ if:
   properties:
     compatible:
       enum:
+        - allwinner,sun20i-d1-dma
         - allwinner,sun50i-a100-dma
         - allwinner,sun50i-h6-dma