This is a supplement for previous patch that was incomplete.
Previous commit message: This is a modification of qos_sched
example to use librte_cfgfile for parsing configuration file.
Fixes: db935d0171dd ("examples/qos_sched: use librte_cfgfile")
Signed-off-by: Michal Jastrzebski <michalx.k.jastrzebski@intel.com>