ACPI: sysfs: manage sysfs attributes through device core

Now that the ACPI sysfs attributes are organized around an
attribute_group, the device core can manage them.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240709-acpi-sysfs-groups-v2-4-058ab0667fa8@weissschuh.net


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