[PATCH] x86/platform: fix "make O=dir kvmconfig"

[Antonio Borneo]

Running:
	make O=dir x86_64_defconfig
	make O=dir kvmconfig
the second command dirties the source tree with file ".config",
symlink "source" and objects in folder "scripts".

Fixed by adding paths in arch Makefile.

Signed-off-by: Antonio Borneo <borneo.antonio@xxxxxxxxx>
---
 arch/x86/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 602f57e..d1b7c37 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -250,8 +250,8 @@ archclean:
 PHONY += kvmconfig
 kvmconfig:
 	$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config arch/x86/configs/kvm_guest.config
-	$(Q)yes "" | $(MAKE) oldconfig
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/kvm_guest.config
+	$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
 
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
-- 
1.9.2

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