[PATCH] build fix: CONFIG_MEMORY_HOTPLUG=y on i386

typo in #ifdefs.  Fixes http://bugme.osdl.org/show_bug.cgi?id=6538



Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>