monitor: move include files to include/monitor/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/net/socket.c b/net/socket.c
index 8430f1a..bc2b951 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -25,7 +25,7 @@
 
 #include "net/net.h"
 #include "clients.h"
-#include "monitor.h"
+#include "monitor/monitor.h"
 #include "qemu-common.h"
 #include "qemu-error.h"
 #include "qemu-option.h"