Avoid including system header for linux/kvm.h - otherwise we will fail
when the system has older headers than what we're really trying to
compile, for example a Linux 2.6.20 host with 2.6.20 Linux headers
installed would fail.

Index: user/kvmctl.h
===================================================================
--- user/kvmctl.h.orig	2007-10-12 14:43:21.000000000 +0300
+++ user/kvmctl.h	2007-10-12 14:43:30.000000000 +0300
@@ -9,8 +9,8 @@
 #define __user /* temporary, until installed via make headers_install */
 #endif
 
-#include <linux/kvm.h>
-#include <linux/kvm_para.h>
+#include "linux/kvm.h"
+#include "linux/kvm_para.h"
 #include <stdint.h>
 #include <signal.h>