test: make parsed nodedevs active and persistent

test: make parsed nodedevs active and persistent

This was the implied default before nodedevs gained a notion of
being inactive and transient. It also matches the implied default
when parsing other object types

Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>