Restart doesn't wait long enough if the host can't be found #63
Description
At https://github.com/qca/boardfarm/blob/master/devices/debian.py#L80 the ping tests are supposed to be spread at least 1 second apart. This doesn't actually work if you're trying to ping a hostname which can't be found because it's rebooting. In that case, there's no delay of 1 second and the host isn't able to reboot fast enough and the reset fails.
I've done a work around for prpl by adding an extra time.sleep(1) in the except statement but that sort of changes the semantics. In some cases with the fix you'll wait 2 seconds (if the ping never returns) or 1 second if the host name can't be found. Nonetheless, it does wait long enough for a reboot.