dmaengine: xgene-dma: fix spelling mistake "descripto" -> "descriptor"

There is a spelling mistake in a chan_dbg message, fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/xgene-dma.c

@@ -797,7 +797,7 @@ static int xgene_dma_alloc_chan_resources(struct dma_chan *dchan)
 		return -ENOMEM;
 	}
 
-	chan_dbg(chan, "Allocate descripto pool\n");
+	chan_dbg(chan, "Allocate descriptor pool\n");
 
 	return 1;
 }