UML - SKAS: handle flexible mmap layout

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
When creating a new mm_struct by opening /proc/mm, call arch_pick_mmap_layout
as well, like is done in the rest of the kernel when creating a new mm_struct.
This is needed since 2.6.9 to support the flexible-mmap-layout patch by Ingo
Molnar.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Index: linux-2.6.14/mm/proc_mm.c
===================================================================
--- linux-2.6.14.orig/mm/proc_mm.c	2005-10-29 05:50:11.000000000 +0200
+++ linux-2.6.14/mm/proc_mm.c	2005-10-29 05:50:14.000000000 +0200
@@ -125,6 +125,7 @@
 		goto out_mem;
 
 	init_new_empty_context(mm);
+	arch_pick_mmap_layout(mm);
 
 	spin_lock(&mmlist_lock);
 	list_add(&mm->mmlist, &current->mm->mmlist);