acer-wmi: add ACER_WMID_v2 interface flag to represent new notebooks

There have new acer notebooks' BIOS provide new WMID_GUID3 and
ACERWMID_EVENT_GUID methods.

Some of machines still keep the old WMID_GUID1 method but more and
more machines were already removed old wmi methods from DSDT.

So, this patch add a new ACER_WMID_v2 interface flag to represent
new acer notebooks, the following is definition:

 + ACER_WMID:
        It means this machine only provides WMID_GUID1/2 methods.

 + ACER_WMID_v2:
        It means this machine provide new WMID_GUID3 and WMID_EVENT_GUID
        methods.
        Some ACER_WMID_v2 machines also provide old WMID_GUID1/2 methods,
        but we still query/set communication device's state by new
        WMID_GUID3 method.

Tested on Acer Travelmate 8572
Tested on Acer Aspire 4739Z

Tested-by: AceLan Kao <[email protected]>
Cc: Carlos Corbacho <[email protected]>
Cc: Matthew Garrett <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Corentin Chary <[email protected]>
Cc: Thomas Renninger <[email protected]>
Signed-off-by: Lee, Chun-Yi <[email protected]>
Signed-off-by: Matthew Garrett <[email protected]>

0 files changed, 0 insertions, 0 deletions