qemu-common: push cpu.h inclusion out of qemu-common.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c
index a3b300c..0f75dd3 100644
--- a/hw/i386/kvm/clock.c
+++ b/hw/i386/kvm/clock.c
@@ -15,6 +15,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu-common.h"
+#include "cpu.h"
 #include "qemu/host-utils.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/kvm.h"