Ansible launcher: fail on watchdog timeout

Because the watchdog initiates a job abort, we were mistaking
a watchdog failure as an internal abort.  Instead, when the
watchdog timeout triggers, record that information and ensure
that we return 'FAILURE' as the job result.

Change-Id: I47a5a764f07690b5f0558c10d7e5fb2d36dd8ed5
1 file changed