crypto/scheduler: fix session backup
crypto/scheduler: fix session backup

Fixes the missed session backup during enqueue.

Fixes: 100e4f7e44ab ("crypto/scheduler: add round-robin mode")

Signed-off-by: Fan Zhang <b46d470dc79aa6fd718cd24d07380f6203b7fc3c@intel.com>
Acked-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk