monitor: move include files to include/monitor/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/block.c b/block.c
index 5eab9e2..0e7f18c 100644
--- a/block.c
+++ b/block.c
@@ -24,7 +24,7 @@
 #include "config-host.h"
 #include "qemu-common.h"
 #include "trace.h"
-#include "monitor.h"
+#include "monitor/monitor.h"
 #include "block/block_int.h"
 #include "block/blockjob.h"
 #include "module.h"