qom: move include files to include/qom/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/qdev-core.h b/hw/qdev-core.h
index 506977c..93a3a2a 100644
--- a/hw/qdev-core.h
+++ b/hw/qdev-core.h
@@ -4,7 +4,7 @@
 #include "qemu-queue.h"
 #include "qemu-option.h"
 #include "qemu-types.h"
-#include "qemu/object.h"
+#include "qom/object.h"
 #include "hw/irq.h"
 #include "qapi/error.h"