Patch merged into coreboot/master: arch/x86: clean up write_tables()

the following patch was just integrated into master:
commit 86cbfa00d00da2786e3a43edd3cf173739f99cba
Author: Aaron Durbin 
Date:   Tue Apr 19 15:53:56 2016 -0500

arch/x86: clean up write_tables()

There were quite a number of #if/#endif guards in the
    write_tables() code. Clean up that function by splitting
    up the subcomponents into their own individual functions.
    The same ordering and logic is kept maintained.

The changes also benefit the goal of using a common core
    write_tables() logic so that other architectures don't
    duplicate large swaths of code.

Change-Id: I93f6775d698500f25f72793cbe3fd4eb9d01a20c
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/14431
    Tested-by: build bot (Jenkins)
    Reviewed-by: Furquan Shaikh 
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/14431 for details.

-gerrit