arm: omap1: replace printk() with pr_err macro

Use pr_err() macro instead of printk(KERN_ERR "...").
Signed-off-by: Prathu Baronia <quic_pbaronia@quicinc.com>
Message-Id: <20230518103324.881394-1-quic_pbaronia@quicinc.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/pm.c

@@ -632,7 +632,7 @@ static int __init omap_pm_init(void)
 
 	error = sysfs_create_file(power_kobj, &sleep_while_idle_attr.attr);
 	if (error)
-		printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
+		pr_err("sysfs_create_file failed: %d\n", error);
 
 	if (cpu_is_omap16xx()) {
 		/* configure LOW_PWR pin */