Major cleanup of i386 tables.c:

Major cleanup of i386 tables.c:

* fix copyright messages
* remove all HAVE_HIGH_TABLES and HAVE_LOW_TABLES preprocessor hackery
  and instead use high_tables_base to find out if high tables should be used.
  The code path with high tables disabled and high tables not available for
  another reason should be the same.
* put MP-table into Fseg instead of 0x10. This allows us to drop an huge and ugly
  portion of code. And it will make some ugly Linux warnings go away.
* use ALIGN macro instead of hand crafted aligning.
* renumber post codes in this piece of code (don't jump ahead and
  back anymore)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4306 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1