spi: pic32-sqi: 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 <[e-mail]>
Signed-off-by: YueHaibing <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-pic32-sqi.c

···
 {
 	struct spi_master *master;
 	struct pic32_sqi *sqi;
-	struct resource *reg;
 	int ret;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(*sqi));
···
 	sqi = spi_master_get_devdata(master);
 	sqi->master = master;
 
-	reg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sqi->regs = devm_ioremap_resource(&pdev->dev, reg);
+	sqi->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(sqi->regs)) {
 		ret = PTR_ERR(sqi->regs);
 		goto err_free_master;