The rte_eal_cleanup code is not exercised by testpmd which
is the most used DPDK test tool. Add a call at end of program.
This helps exercise free and close paths which can
be checked with tools like valgrind.
Fixes:
af75078fece3 ("first public release")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>