cfq-iosched.c: make some code static

@@ -1790,7 +1790,7 @@
 	.store	= cfq_attr_store,
 };
 
-struct kobj_type cfq_ktype = {
+static struct kobj_type cfq_ktype = {
 	.sysfs_ops	= &cfq_sysfs_ops,
 	.default_attrs	= default_attrs,
 };

@@ -1819,7 +1819,7 @@
 	.elevator_owner =	THIS_MODULE,
 };
 
-int cfq_init(void)
+static int cfq_init(void)
 {
 	int ret;