git: openjdk/loom: fibers: Mark chunk flags read/write as atomic; cleanup

[duke]

Changeset: 167db9ea
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2022-03-03 13:50:51 +0000
URL:       https://git.openjdk.java.net/loom/commit/167db9ea0fd7a6cc63d92ce57e2a2a4437c68662

Mark chunk flags read/write as atomic; cleanup

! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/oops/stackChunkOop.inline.hpp