crypto/qat: fix null cipher algo for non 8-byte multiple
crypto/qat: fix null cipher algo for non 8-byte multiple

NULL cipher algo of 4-byte multiple and other sizes caused firmware hang
due to use of wrong mode. Changed from ECB mode to CTR mode to fix.

Fixes: 98f060891615 ("crypto/qat: add symmetric session file")
Cc: stable@dpdk.org

Signed-off-by: Fiona Trahe <7ba562cc372916cd557d0be347608f8b4da4f746@intel.com>

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