Two new acpi modules, acpi_wmi and acpi_hp

[Michael]

Hi Rui,

please find attached a patchset set applies and compiles cleanly on HEAD
of today (checked out approx. 2 hours ago). I also attached the patch
for 7.2 again (so if somebody stumbles over this post they have both
patches attached). I gziped them to avoid MUA madness. I also attached a
tgz for the patches against HEAD, just in case.

Changes done for HEAD are:
- Modified kmod.mk patch (because of agp)
- Modified includes in acpi_hp.c acpi_wmi.c and acpi_wmi_if.m
  because of changes caused by importing ACPICA 20090521 two
  weeks ago
- Moved man pages to share/man/man4 (this is where all acpi_support
  man pages are in HEAD)
- Fixed space-instead-of-tab issues in NOTES

Install instructions:
mkdir /usr/src/sys/modules/acpi/acpi_hp
mkdir /usr/src/sys/modules/acpi/acpi_wmi
patch -d /usr/src < acpi_wmi_and_acpi_hp_8.patch

Maybe you can drop me a short note when it has been checked in (just for
my own pleasure :)

cheers
Michael