Rather than dereference the mem_config internal structure, we can rely
on the rte_memzone_walk API and count memzones.
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>