The stack randomization patches that went into 2.6.11-rc3-mm1 broke 
compilation of ARCH=um.  This patch fixes compiling by adding 
arch_align_stack back in.

Signed-off-by: Frank Sorenson <frank@tuxrocks.com>
Acked-By: Jeff Dike <jdike@addtoit.com>

Frank
-- 
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com