Reboot Android devices after running a task.

Change-Id: I9d23f3e4d84bee95507b9b6d4750bf7d2d917fc8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/627757
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
30 files changed