git: openjdk/loom: fibers: Fix build

[duke]

Changeset: 0110eb78
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-07-27 16:34:37 +0000
URL:       https://git.openjdk.java.net/loom/commit/0110eb78

Fix build

! src/hotspot/share/compiler/oopMap.hpp