log: do not unnecessarily include qom/cpu.h

Split the bits that require it to exec/log.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-8-git-send-email-den@openvz.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/exec.c b/exec.c
index 9e076bc..ab37360 100644
--- a/exec.c
+++ b/exec.c
@@ -52,6 +52,7 @@
 
 #include "exec/memory-internal.h"
 #include "exec/ram_addr.h"
+#include "exec/log.h"
 
 #include "qemu/range.h"
 #ifndef _WIN32