Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Catch up with ACPI-CA 20070320 import.

/* -> /*- for license, minor formatting changes

Complete quirk handling script by matching the in-kernel table format.
Use a union to properly assign values. Collapse some unnecessary variables
in the revision rules.

Add a script to parse acpi_quirks into a header file that we can compile
into ACPI. Script written by Mark Santcroos with some edits from myself.

Submitted by: marks