ARM: tegra: Rename the apbdma nodename to match with common dma-controller binding

ARM: tegra: Rename the apbdma nodename to match with common dma-controller binding

Rename the apbdma nodename from "dma@" to "dma-controller@" to align with
linux common dma-controller binding.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20250507-nvidea-dma-v4-1-6161a8de376f@gmail.com
[treding@nvidia.com: adjust subject prefix for consistency]
Signed-off-by: Thierry Reding <treding@nvidia.com>