GCC 11 complains that some arrays may be uninitialized in
process_zuc_hash_op(). This is because their initialization
depends on num_ops being > 0.
This function is only called with num_ops > 0 because of
checks in process_zuc_hash_op().
To remove the warning initialize the arrays.
Fixes: 0b133c36ad ("crypto/zuc: support IPsec Multi-buffer lib v0.54")
Cc: stable@dpdk.org
Signed-off-by: Kevin Traynor <ktraynor@redhat.com>