net: ethernet: xilinx: use of_property_read_bool() instead of of_get_property

"little-endian" has no specific content, use more helper function
of_property_read_bool() instead of of_get_property()
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/ll_temac_main.c

@@ -1515,7 +1515,7 @@ static int temac_probe(struct platform_device *pdev)
 				of_node_put(dma_np);
 				return PTR_ERR(lp->sdma_regs);
 			}
-			if (of_get_property(dma_np, "little-endian", NULL)) {
+			if (of_property_read_bool(dma_np, "little-endian")) {
 				lp->dma_in = temac_dma_in32_le;
 				lp->dma_out = temac_dma_out32_le;
 			} else {