ACPI: EC: Use ec_no_wakeup on HP ZHAN 66 Pro

EC interrupts constantly wake up system from s2idle, so set
ec_no_wakeup by default to keep the system in s2idle and reduce
energy consumption.

Signed-off-by: Binbin Zhou <zhoubinbin@uniontech.com>
[ rjw: Changelog and subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>