MFC 233305,233623:

MFC 233305,233623:
- Mark the 'lapics' and 'ioapics' arrays here static since they are
  private to this file.  The 'lapics' array was actually shadowing a
  completely different 'lapics' array that is private to local_apic.c.
- Allocate the ioapics[] array dynamically since it is only needed for the
  duration of madt_setup_io().  This avoids having the array take up
  permanent space in the BSS.

git-svn-id: svn://svn.freebsd.org/base/stable/9@234147 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f