tsnep: Use devm_platform_get_and_ioremap_resource() in tsnep_probe()

A wrapper function is available since the commit 890cc39a
("drivers: provide devm_platform_get_and_ioremap_resource()").
Thus reuse existing functionality instead of keeping duplicate source code.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Tested-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Link: https://lore.kernel.org/r/29e9dc0f-5597-4fee-be5c-25a5ab4fe2dc@web.deSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/engleder/tsnep_main.c

@@ -2563,8 +2563,7 @@ static int tsnep_probe(struct platform_device *pdev)
 	mutex_init(&adapter->rxnfc_lock);
 	INIT_LIST_HEAD(&adapter->rxnfc_rules);
 
-	io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	adapter->addr = devm_ioremap_resource(&pdev->dev, io);
+	adapter->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &io);
 	if (IS_ERR(adapter->addr))
 		return PTR_ERR(adapter->addr);
 	netdev->mem_start = io->start;