(This is a merge of http://go/wvgerrit/16496 )
run_all_unit_tests.sh now aborts and alerts the user if they have
Verity on, as opposed to its current behavior of failing later when
the tests don't copy over successfully.
Bug: 23420350
Change-Id: Ib01d32caaac462974b051f5d019888f7c47bc745