ACPICA: Add method name "_DIS" For use with aslmethod.c

ACPICA commit 5acc6818c537888be147d9da6b280a0b8c241a1d

Link: https://github.com/acpica/acpica/commit/5acc6818


Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>