hpet.h -> include/hw/timer/

Change-Id: I99c9a53ddf392ae490d254de76b0d0cdacd1494c
diff --git a/qemu-timer.c b/qemu-timer.c
index fb5f88b..d06b65b 100644
--- a/qemu-timer.c
+++ b/qemu-timer.c
@@ -45,7 +45,7 @@
 /* For the benefit of older linux systems which don't supply it,
    we use a local copy of hpet.h. */
 /* #include <linux/hpet.h> */
-#include "hpet.h"
+#include "hw/timer/hpet.h"
 #endif
 
 #ifdef _WIN32