kernel/acpi: Fix a typo in a function name.
Upgrade GCC from 4.7.2 to 4.7.3 on the vendor branch
Merge branch 'vendor/GCC47'
gcc47: Update base compiler to from version 4.7.2 to 4.7.3

This is a bug fix release.
The official change page is http://gcc.gnu.org/gcc-4.7/changes.html
According to it, 119 bugs have been resolved since version 4.7.2 was released
although many of them are surely not applicable for DragonFly.  The fixes
include 3 top priority bug reports and 27 second-priority bug reports.
kernel/acpi: Sync acpi_pci_link with FreeBSD.

* Fix use-after-free bug for extended IRQ resource[1].

* Some BIOSes use an Extended IRQ resource descriptor in _PRS for a link
  that uses non-ISA IRQs but use a plain IRQ resource in _CRS.  However,
  a non-ISA IRQ can't fit into a plain IRQ resource.  If we encounter a
  link like this, build the resource buffer from _PRS instead of _CRS.

* Set the correct size of the end tag in a resource buffer.

* Make MALLOC_DEFINEs that have no corresponding MALLOC_DECLAREs static.

Reviewed-and-tested-by: sephe