Fix powerpc64 LINT

vm_object_reserve() == true is impossible on power. Make conditional
on VM_LEVEL_0_ORDER being defined.

Reviewed by:	jeff
Approved by:	sbruno

sys/vm/vm_domainset.c

@@ -81,6 +81,7 @@ vm_domainset_iter_init(struct vm_domainset_iter *di, struct vm_object *obj,
 	}
 	di->di_policy = di->di_domain->ds_policy;
 	if (di->di_policy == DOMAINSET_POLICY_INTERLEAVE) {
+#ifdef VM_LEVEL_0_ORDER
 		if (vm_object_reserv(obj)) {
 			/*
 			 * Color the pindex so we end up on the correct
@@ -88,7 +89,9 @@ vm_domainset_iter_init(struct vm_domainset_iter *di, struct vm_object *obj,
 			 */
 			pindex += obj->pg_color;
 			pindex >>= VM_LEVEL_0_ORDER;
-		} else
+		}
+		else
+#endif			
 			pindex /= vm_domainset_default_stride;
 		/*
 		 * Offset pindex so the first page of each object does