regulator: dbx500: use seq_puts() instead of seq_printf()

For a constant format without additional arguments, use seq_puts()
instead of seq_printf(). Also, it fixes the following checkpatch
warning.

WARNING: Prefer seq_puts to seq_printf

Signed-off-by: Jingoo Han <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/dbx500-prcmu.c

···
 	int i;
 
 	/* print dump header */
-	err = seq_printf(s, "ux500-regulator status:\n");
+	err = seq_puts(s, "ux500-regulator status:\n");
 	if (err < 0)
-		dev_err(dev, "seq_printf overflow\n");
+		dev_err(dev, "seq_puts overflow\n");
 
 	err = seq_printf(s, "%31s : %8s : %8s\n", "current",
 		"before", "after");