dt-bindings: gpu: mali-bifrost: Add Realtek RTD1619

Define a compatible string for Realtek RTD1619 SoC family.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml

@@ -17,6 +17,7 @@ properties:
     items:
       - enum:
           - amlogic,meson-g12a-mali
+          - realtek,rtd1619-mali
       - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
 
   reg: