[PATCH] x86_64: Fix make all

From: Olaf Hering <olh@suse.de>

make all fails while building a helper app:

arch/x86_64/boot/tools/build.c:36:22: asm/boot.h: No such file or directory

This patch fixes it for me.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/x86_64/boot/Makefile

@@ -31,6 +31,7 @@ targets		:= vmlinux.bin bootsect bootsect.o \
 EXTRA_CFLAGS := -m32
 
 hostprogs-y	:= tools/build
+HOST_EXTRACFLAGS += $(LINUXINCLUDE)
 subdir-		:= compressed/	#Let make clean descend in compressed/
 # ---------------------------------------------------------------------------