clk: fix devm_platform_ioremap_resource.cocci warnings

drivers/clk/bcm/clk-bcm63xx-gate.c:174:1-9: WARNING: Use devm_platform_ioremap_resource for hw -> regs

Use devm_platform_ioremap_resource helper which wraps
platform_get_resource() and devm_ioremap_resource() together.

Generated by: scripts/coccinelle/api/devm_platform_ioremap_resource.cocci

Fixes: 1c099779c1e2 ("clk: add BCM63XX gated clock controller driver")
CC: Jonas Gorski <[e-mail]>
Signed-off-by: kbuild test robot <[e-mail]>
Signed-off-by: Julia Lawall <[e-mail]>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1908081809160.2995@hadrien
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/bcm/clk-bcm63xx-gate.c

···
 {
 	const struct clk_bcm63xx_table_entry *entry, *table;
 	struct clk_bcm63xx_hw *hw;
-	struct resource *r;
 	u8 maxbit = 0;
 	int i, ret;
 
···
 	for (i = 0; i < maxbit; i++)
 		hw->data.hws[i] = ERR_PTR(-ENODEV);
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hw->regs = devm_ioremap_resource(&pdev->dev, r);
+	hw->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hw->regs))
 		return PTR_ERR(hw->regs);