mfd: omap-usb-tll: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230706113939.1178-2-frank.li@vivo.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/omap-usb-tll.c

@@ -200,15 +200,13 @@ static unsigned ohci_omap3_fslsmode(enum usbhs_omap_port_mode mode)
 static int usbtll_omap_probe(struct platform_device *pdev)
 {
 	struct device				*dev =  &pdev->dev;
-	struct resource				*res;
 	struct usbtll_omap			*tll;
 	void __iomem				*base;
 	int					i, nch, ver;
 
 	dev_dbg(dev, "starting TI HSUSB TLL Controller\n");
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);