platform/x86: alienware_wmi: General cleanup of WMAX methods

Reorder variable declaration from longest to shortest. Standarize
show/store method names of WMAX's sysfs groups.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20250105153019.19206-8-kuurtb@gmail.com


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