dma: tegra: use sg_dma_address() for getting dma buffer address

Use the sg_dma_address() to get the segment buffer address for
DMA transfer in place of sg_phys() which returns the physical
address of an sg entry.
The sg_dma_address() returns the correct buffer memory address
for DMA transfer.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

drivers/dma/tegra20-apb-dma.c

@@ -929,7 +929,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg(
 	for_each_sg(sgl, sg, sg_len, i) {
 		u32 len, mem;
 
-		mem = sg_phys(sg);
+		mem = sg_dma_address(sg);
 		len = sg_dma_len(sg);
 
 		if ((len & 3) || (mem & 3) ||