Verify that if the system encounters a hard lockup, i.e., interrupts
are no longer being serviced, then the system's watchdog will
correctly reboot it.
Let's drop the leading IETF or Infix prefixes from tests. Initially the
idea was to mimnic the YANG models, but it's difficult to navigate and
does not provide any real benefit to developers or end-users.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>