app/testpmd: fix initialization

app/testpmd: fix initialization

Patch adding configurable locking has reshuffled some init stages, but
did not put them back in correct order. Fix order of init by moving
everything that was before arguments parsing into correct places.

Fixes: e505d84c64ab ("app/testpmd: make locking memory configurable")

Reported-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Ali Alnubani <alialnu@mellanox.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>