[Fuchsia] Add test suites that we want to enable on Fuchsia to FYI bots

Remove the regular Fuchsia gtests from FYI bots and add experimental
ones. These test suites are relevant to Fuchsia, yet are not turned
on in Fuchsia CI and CQ bots. Putting them on FYI allows us to test
for stability/bugs.

Bug: 1229407
Change-Id: I46fd5924ceaea07abc29db4c652028514c0dca79
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3027566
Auto-Submit: Chong Gu <chonggu@google.com>
Commit-Queue: Chong Gu <chonggu@google.com>
Reviewed-by: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: David Dorwin <ddorwin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#902159}