git: openjdk/loom: fibers: 2 new changesets

[duke]

Changeset: 6af9b976
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2020-07-16 14:20:04 +0000
URL:       https://git.openjdk.java.net/loom/commit/6af9b976

Restore code to switch to carrier thread when doing timed park

! src/java.base/share/classes/java/lang/VirtualThread.java
+ test/jdk/java/lang/Thread/virtual/stress/TimedGet.java

Changeset: e0d9899f
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2020-07-16 15:08:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/e0d9899f

TimedGet test fails with OOM on some systems

! test/jdk/java/lang/Thread/virtual/stress/TimedGet.java