USB: gadget: amd5536udc.c: Remove double test

The same expression is tested twice and the result is the same each time.
Instead test for use_dma_ppb as in the test above.

The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@expression@
expression E;
@@

(
* E
  || ... || E
|
* E
  && ... && E
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/amd5536udc.c

@@ -203,7 +203,7 @@ static void print_regs(struct udc *dev)
 		DBG(dev, "DMA mode       = PPBNDU (packet per buffer "
 			"WITHOUT desc. update)\n");
 		dev_info(&dev->pdev->dev, "DMA mode (%s)\n", "PPBNDU");
-	} else if (use_dma && use_dma_ppb_du && use_dma_ppb_du) {
+	} else if (use_dma && use_dma_ppb && use_dma_ppb_du) {
 		DBG(dev, "DMA mode       = PPBDU (packet per buffer "
 			"WITH desc. update)\n");
 		dev_info(&dev->pdev->dev, "DMA mode (%s)\n", "PPBDU");