ec/lenovo/h8/acpi/systemstatus.asl: Fix typo in o*n* in comment

Change-Id: I655536f64faaa7e1600d4fec62ba80730e2cc45a
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/6674
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>