ACPICA: Fix a regression for deletion of Alias() objects.

Fixes a regression introduced by commit e23d9b829754 (ACPICA:
Namespace: Properly null terminate objects detached from a namespace
node)

In the case of Alias namespace nodes, the node simply points to the aliased
node via the Object field; thus we cannot assume that the object is an
operand object.

Fixes: e23d9b829754 (ACPICA: Namespace: Properly null terminate objects detached from a namespace node)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPI / documentation: Remove reference to acpi_platform_device_ids from enumeration.txt

As of:

    4845934 ACPI / scan: use platform bus type by default for _HID enumeration

ACPI uses the platform bus by default, changing the opt-in to an opt-out
policy, eliminating the acpi_platform_device_ids table and replacing it
with forbidden_id_list[].

Remove the qualifying paragraph from the acpi/enumeration documentation
as it no longer applies.

Reported-by: Max Eliaser <max@meliaserlow.dyndns.tv>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge branch 'acpica' into linux-next

* acpica:
  ACPICA: Fix a regression for deletion of Alias() objects.
Merge branch 'acpi-scan' into linux-next

* acpi-scan:
  ACPI / documentation: Remove reference to acpi_platform_device_ids from enumeration.txt