net/mlx5e: kTLS, Take stats out of OOO handler

Let the caller of mlx5e_ktls_tx_handle_ooo() take care of updating the
stats, according to the returned value.  As the switch/case blocks are
already there, this change saves unnecessary branches in the handler.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>