ACPI / container: Use hotplug profile user space interface

Make the ACPI container driver register its ACPI scan handler object
using acpi_scan_add_handler_with_hotplug() to allow user space to
manipulate its hotplug profile attributes.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>