misc: move include files to include/qemu/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index 740f730..5bc8003 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -18,7 +18,7 @@
 #define HW_USB_EHCI_H 1
 
 #include "hw/hw.h"
-#include "qemu-timer.h"
+#include "qemu/timer.h"
 #include "hw/usb.h"
 #include "monitor/monitor.h"
 #include "trace.h"