Staging: lustre: osc: Declare osc_attr_set as static

osc_attr_set is used only in this particular file. Thus declare it
as static.
Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/osc/osc_object.c

@@ -158,7 +158,7 @@ static int osc_attr_get(const struct lu_env *env, struct cl_object *obj,
 	return 0;
 }
 
-int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
+static int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
 			const struct cl_attr *attr, unsigned valid)
 {
 	struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;