[PATCH 1/3] dt-bindings: dma: snps,dw-axi-dmac: Add CV1800B compatible

[Anton Stavinsky]

> The DMA controller on CV1800B needs to use the DMA phandle args
> as the channel number instead of hardware handshake number, so
> add a new compatible for the DMA controller on CV1800B.

Thanks a lot,  Inochi. I've tested on my Milk Duo 256M board. 
Seems to be working with the I2S driver, which I'm working on right now.
No issues with DMA interrupts anymore, DMA router used right channel.