dma: ste_dma40: Remove duplicate const

'const' was added twice.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>

drivers/dma/ste_dma40.c

@@ -3485,7 +3485,7 @@ static int __init d40_of_probe(struct platform_device *pdev,
 {
 	struct stedma40_platform_data *pdata;
 	int num_phy = 0, num_memcpy = 0, num_disabled = 0;
-	const const __be32 *list;
+	const __be32 *list;
 
 	pdata = devm_kzalloc(&pdev->dev,
 			     sizeof(struct stedma40_platform_data),