arm64: dts: allwinner: h616: Add DMA controller and DMA channels

The DMA controllers found on the H616 and H618 are the same as the one
found on the A100. The only difference is the DMA endpoint (DRQ) layout.

Add a device node for it, and add DMA channels for existing peripherals.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20240127163247.384439-7-wens@kernel.org


Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>