git: openjdk/loom: fibers: 2 new changesets

[duke]

Changeset: 4ab2eaa6
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-10-14 20:28:17 +0000
URL:       https://git.openjdk.java.net/loom/commit/4ab2eaa6

Improve do_verify_after_thaw

! src/hotspot/share/runtime/continuation.cpp

Changeset: 57361273
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-10-14 20:29:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/57361273

Fix chunk size calculation

! src/hotspot/share/runtime/continuation.cpp