A terminated pthread should be joined or detached so that its associated
resources are released.
The "ark-delay-pg" thread is just used to delay some task but it is never
joined by the thread that created it.
The easiest solution is to detach the new thread.
Fixes: 727b3fe292bc ("net/ark: integrate PMD")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ed Czeck <ed.czeck@atomicrules.com>