net/mlx5e: Fix MACsec initialization error path

Currently MACsec initialization error path does not
destroy sci hash table in case of failure.
Fix by destroying hash table in case of failure.

Fixes: 9515978e ("net/mlx5e: Implement MACsec Tx data path using MACsec skb_metadata_dst")
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>