param: drop priv from dev_add_param_string_ro

dev_add_param_string_ro() is used nowhere, but when we do, having an
unused priv parameter serves no purpose, so drop it.

Signed-off-by: Ahmad Fatoum <[email protected]>
Link: https://lore.barebox.org/[email protected]
Signed-off-by: Sascha Hauer <[email protected]>

Author: a3f

include/param.h

@@ -334,8 +334,7 @@ static inline struct param_d *dev_add_param_bool_ro(struct device *dev,
 
 static inline struct param_d *dev_add_param_string_ro(struct device *dev,
 						      const char *name,
-						      char **value,
-						      void *priv)
+						      char **value)
 {
 	return dev_add_param_string(dev, name, param_set_readonly, NULL, value, NULL);
 }