ACPICA commit 08c4197cf4ddd45f0c961078220b0fc19c10745c

Xen Environment table.

Link: https://github.com/acpica/acpica/commit/08c4197cSigned-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>