ACPI: thermal: Fix stale comment regarding trip points

Update the comment next to acpi_thermal_get_trip_points() call site
in acpi_thermal_add() to reflect what the code does.

It has diverged from the code after changes that removed the _CRT
evaluation from acpi_thermal_get_trip_points() among other things.

Signed-off-by: xueqin Luo <luoxueqin@kylinos.cn>
Link: https://patch.msgid.link/20250208013335.126343-1-luoxueqin@kylinos.cn


[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>