crypto/scheduler: fix 64-bit mask of workers cores

crypto/scheduler: fix 64-bit mask of workers cores

The list of workers cores was represented by 64-bit bitmask.
It doesn't work if system has cores with id higher than 63.
This fix changes list of workers cores to array of uint16_t.
The size of array equals to RTE_MAX_LCORE.

Fixes: 4c07e0552f0a ("crypto/scheduler: add multicore scheduling mode")
Cc: stable@dpdk.org
Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>