regmap: debugfs: Don't mark lockdep as broken due to debugfs write

A register write to hardware is reasonably unlikely to cause locking
dependency issues, the reason we're tainting is that unexpected changes
in the hardware configuration may confuse drivers.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/base/regmap/regmap-debugfs.c

@@ -281,7 +281,7 @@ static ssize_t regmap_map_write_file(struct file *file,
 		return -EINVAL;
 
 	/* Userspace has been fiddling around behind the kernel's back */
-	add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
+	add_taint(TAINT_USER, LOCKDEP_STILL_OK);
 
 	ret = regmap_write(map, reg, value);
 	if (ret < 0)