[acpica] Avoid undefined behavior

Upstream: https://github.com/acpica/acpica/pull/850.

Bug: 41663
Change-Id: I8242d5e0406bbd044630e5146417d53e2ecda4e9
1 file changed
tree: 3c4fc0c7b9b8b4ac5fe510e263010cce84123aec
  1. include/
  2. source/
  3. BUILD.gn
  4. changes.txt
  5. LICENSE
  6. OWNERS
  7. README.fuchsia