misc: move include files to include/qemu/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/pl031.c b/hw/pl031.c
index 8bf0183..834a20c 100644
--- a/hw/pl031.c
+++ b/hw/pl031.c
@@ -12,7 +12,7 @@
  */
 
 #include "sysbus.h"
-#include "qemu-timer.h"
+#include "qemu/timer.h"
 #include "sysemu.h"
 
 //#define DEBUG_PL031