ACPICA commit 6cd47047aca6e273c84a5ce95d2f6d8485f958d1

There are a handful of spelling mistakes in various files as found
using codespell. Fix these. No code changes.

Link: https://github.com/acpica/acpica/commit/6cd47047Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>