mt76: mt7603: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7603/soc.c

@@ -9,7 +9,6 @@
 static int
 mt76_wmac_probe(struct platform_device *pdev)
 {
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct mt7603_dev *dev;
 	void __iomem *mem_base;
 	struct mt76_dev *mdev;
@@ -20,7 +19,7 @@ mt76_wmac_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	mem_base = devm_ioremap_resource(&pdev->dev, res);
+	mem_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mem_base)) {
 		dev_err(&pdev->dev, "Failed to get memory resource\n");
 		return PTR_ERR(mem_base);