ARM: dts: r9a06g032: Add the two DMA nodes

Describe the two DMA controllers available on this SoC.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220427095653.91804-9-miquel.raynal@bootlin.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>