dmaengine: andes: atcdmac300: Remove transfer width restrictions for DMA memcpy

The transfer width restriction is no longer necessary, as the ATCDMAC300
DMA engine supports transfer widths of 1, 2, 4, 8, and 16 bytes when
accessing the HVM.

Signed-off-by: CL Wang <[email protected]>

Author: CL Wang

drivers/dma/atcdmac300.c

@@ -488,19 +488,11 @@ static inline unsigned int xfer_width(struct v5_dma *v5dma,
 {
 	unsigned int width;
 
-	/*
-	 * To prevent HVM DMA transfer from getting stuck,
-	 * limit the transfer width to word transfer.
-	 */
-# if 0
 	if (!((src | dst | len) & 15))
 		width = 4;
 	else if (!((src | dst | len) & 7))
 		width = 3;
 	else if (!((src | dst | len) & 3))
-#else
-	if (!((src | dst | len) & 3))
-#endif
 		width = 2;
 	else if (!((src | dst | len) & 1))
 		width = 1;