platform/x86: intel-hid: Add support for SW_TABLET_MODE

Some convertible use the intel-hid ACPI interface to report SW_TABLET_MODE,
implement this with DMI based allow-list to be sure to activate support
only on models that effectively have it.

Signed-off-by: Elia Devito <eliadevito@gmail.com>
Link: https://lore.kernel.org/r/20201204160121.36703-1-elia@xvalue.it


Signed-off-by: Hans de Goede <hdegoede@redhat.com>