dmaengine: jz4740: Remove chancnt affectations

chanctnt is already filled by dma_async_device_register, which uses the channel
list to know how much channels there is.

Since it's already filled, we can safely remove it from the drivers' probe
function.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/dma-jz4740.c

@@ -563,10 +563,9 @@ static int jz4740_dma_probe(struct platform_device *pdev)
 	dd->device_prep_dma_cyclic = jz4740_dma_prep_dma_cyclic;
 	dd->device_control = jz4740_dma_control;
 	dd->dev = &pdev->dev;
-	dd->chancnt = JZ_DMA_NR_CHANS;
 	INIT_LIST_HEAD(&dd->channels);
 
-	for (i = 0; i < dd->chancnt; i++) {
+	for (i = 0; i < JZ_DMA_NR_CHANS; i++) {
 		chan = &dmadev->chan[i];
 		chan->id = i;
 		chan->vchan.desc_free = jz4740_dma_desc_free;