dt-bindings: Document Tegra264 ADMA support

Add Tegra264 ADMA support to the device tree bindings documentation.
The Tegra264 ADMA hardware supports 64 DMA channels and requires
specific register configurations.

Signed-off-by: Sheetal <sheetal@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250512050010.1025259-2-sheetal@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Sheetal

Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml

@@ -19,6 +19,7 @@ properties:
       - enum:
           - nvidia,tegra210-adma
           - nvidia,tegra186-adma
+          - nvidia,tegra264-adma
       - items:
           - enum:
               - nvidia,tegra234-adma
@@ -92,6 +93,7 @@ allOf:
           contains:
             enum:
               - nvidia,tegra186-adma
+              - nvidia,tegra264-adma
     then:
       anyOf:
         - properties: