[PATCH] uml: s390 preparation, linkage.h inherited from host

This patch replaces the contents of include/asm-um/linkage.h
by
    #include "asm/arch/linkage.h"
Signed-off-by: NBodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/asm-um/linkage.h

-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
+#ifndef __ASM_UM_LINKAGE_H
+#define __ASM_UM_LINKAGE_H
 
-#define FASTCALL(x)	x __attribute__((regparm(3)))
-#define fastcall        __attribute__((regparm(3)))
+#include "asm/arch/linkage.h"
 
 #endif