git: openjdk/loom: fibers: Fix build

[duke]

Changeset: ae2732e7
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-07-27 16:59:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/ae2732e7

Fix build

! src/hotspot/cpu/x86/hframe_x86.hpp
! src/hotspot/share/runtime/continuation.cpp