dmaengine: axi-dmac: Don't set chancnt

The dma framework will calculate the dma channels chancnt, setting it
ourself is wrong.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20230521100252.3197-3-jszhang@kernel.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>