git: openjdk/loom: fibers: more tests excluded.

[duke]

Changeset: ff41f387
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2020-10-01 17:59:58 +0000
URL:       https://git.openjdk.java.net/loom/commit/ff41f387

more tests excluded.

! test/hotspot/jtreg/ProblemList-vthread.txt