platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array

Add missing empty member to `awcc_dmi_table`.

Cc: stable@vger.kernel.org
Fixes: 6d7f1b1a ("platform/x86: alienware-wmi: Split DMI table")
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20250707-dmi-fix-v1-1-6730835d824d@gmail.com


Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>