mlxsw: spectrum_acl_tcam: Make fini symmetric to init

[ Upstream commit 61fe3b91 ]

Move mutex_destroy() to the end to make the function symmetric with
mlxsw_sp_acl_tcam_init(). No functional changes.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 483ae90d ("mlxsw: spectrum_acl_tcam: Fix stack corruption")
Signed-off-by: Sasha Levin <sashal@kernel.org>