dma: axi-dmac: Enable DMA_INTERLEAVE capability

Since device_prep_interleaved_dma() is already implemented, the
DMA_INTERLEAVE capability should be set.

Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>

drivers/dma/dma-axi-dmac.c

@@ -872,6 +872,7 @@ static int axi_dmac_probe(struct platform_device *pdev)
 	dma_dev = &dmac->dma_dev;
 	dma_cap_set(DMA_SLAVE, dma_dev->cap_mask);
 	dma_cap_set(DMA_CYCLIC, dma_dev->cap_mask);
+	dma_cap_set(DMA_INTERLEAVE, dma_dev->cap_mask);
 	dma_dev->device_free_chan_resources = axi_dmac_free_chan_resources;
 	dma_dev->device_tx_status = dma_cookie_status;
 	dma_dev->device_issue_pending = axi_dmac_issue_pending;