um: merge arch/um/sys-{i386,x86_64}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 302cbe5..7e5f1ba 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -1,4 +1,4 @@
-core-y += arch/um/sys-i386/ arch/x86/crypto/
+core-y += arch/um/sys-x86/ arch/x86/crypto/
 
 TOP_ADDR := $(CONFIG_TOP_ADDR)