arm64: tegra: Fix DMA ID for SPI2

DMA ID for SPI2 is '16'. Update the incorrect value in the devicetree.

Fixes: bb9667d8 ("arm64: tegra: Add SPI device tree nodes for Tegra234")
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Link: https://lore.kernel.org/r/20241206105201.53596-1-akhilrajeev@nvidia.com


Signed-off-by: Thierry Reding <treding@nvidia.com>