net: qcom/emac: use device_get_mac_address

Replace the DT-specific of_get_mac_address() function with
device_get_mac_address, which works on both DT and ACPI platforms.  This
change makes it easier to add ACPI support.
Signed-off-by: NTimur Tabi <timur@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qualcomm/emac/emac.c

@@ -531,18 +531,16 @@ static void emac_clks_teardown(struct emac_adapter *adpt)
 static int emac_probe_resources(struct platform_device *pdev,
 				struct emac_adapter *adpt)
 {
-	struct device_node *node = pdev->dev.of_node;
 	struct net_device *netdev = adpt->netdev;
 	struct resource *res;
-	const void *maddr;
+	char maddr[ETH_ALEN];
 	int ret = 0;
 
 	/* get mac address */
-	maddr = of_get_mac_address(node);
-	if (!maddr)
-		eth_hw_addr_random(netdev);
-	else
+	if (device_get_mac_address(&pdev->dev, maddr, ETH_ALEN))
 		ether_addr_copy(netdev->dev_addr, maddr);
+	else
+		eth_hw_addr_random(netdev);
 
 	/* Core 0 interrupt */
 	ret = platform_get_irq(pdev, 0);