git: openjdk/loom: fibers: Fix build

[duke]

Changeset: e857696e
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-08-10 20:37:43 +0000
URL:       https://git.openjdk.java.net/loom/commit/e857696e

Fix build

! src/hotspot/cpu/x86/continuation_x86.inline.hpp