ACPI / thermal: Use THERMAL_TRIPS_NONE macro to replace number

It's unreadable to pass "-1" as trip parameter directly to
thermal_zone_bind_cooling_device().  Use THERMAL_TRIPS_NONE instead.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>